157204289745 has 48 divisors (see below), whose sum is σ = 279096280320. Its totient is φ = 81812602368.

The previous prime is 157204289741. The next prime is 157204289747. The reversal of 157204289745 is 547982402751.

157204289745 is a `hidden beast` number, since 1 + 572 + 0 + 4 + 28 + 9 + 7 + 45 = 666.

It is not a de Polignac number, because 157204289745 - 2² = 157204289741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 157204289691 and 157204289700.

It is not an unprimeable number, because it can be changed into a prime (157204289741) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1971369 + ... + 2049561.

It is an arithmetic number, because the mean of its divisors is an integer number (5814505840).

Almost surely, 2^157204289745 is an apocalyptic number.

157204289745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157204289745 is a deficient number, since it is larger than the sum of its proper divisors (121891990575).

157204289745 is a wasteful number, since it uses less digits than its factorization.

157204289745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79286 (or 79283 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 54.

The spelling of 157204289745 in words is "one hundred fifty-seven billion, two hundred four million, two hundred eighty-nine thousand, seven hundred forty-five".