157027207428 has 576 divisors, whose sum is σ = 521308569600. Its totient is φ = 38750607360.

The previous prime is 157027207427. The next prime is 157027207429. The reversal of 157027207428 is 824702720751.

157027207428 is a `hidden beast` number, since 1 + 570 + 2 + 7 + 2 + 0 + 74 + 2 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (157027207427) and next prime (157027207429).

It is a super-2 number, since 2×157027207428² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (157027207427) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 437401513 + ... + 437401871.

It is an arithmetic number, because the mean of its divisors is an integer number (905049600).

Almost surely, 2^157027207428 is an apocalyptic number.

157027207428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157027207428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260654284800).

157027207428 is an abundant number, since it is smaller than the sum of its proper divisors (364281362172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157027207428 is a wasteful number, since it uses less digits than its factorization.

157027207428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552 (or 547 counting only the distinct ones).

The product of its (nonzero) digits is 439040, while the sum is 45.

The spelling of 157027207428 in words is "one hundred fifty-seven billion, twenty-seven million, two hundred seven thousand, four hundred twenty-eight".