157247161869 has 12 divisors (see below), whose sum is σ = 239617491936. Its totient is φ = 89854482672.

The previous prime is 157247161853. The next prime is 157247161891. The reversal of 157247161869 is 968161742751.

It is not a de Polignac number, because 157247161869 - 2⁴ = 157247161853 is a prime.

It is a super-2 number, since 2×157247161869² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157247161469) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1773927 + ... + 1860459.

It is an arithmetic number, because the mean of its divisors is an integer number (19968124328).

Almost surely, 2^157247161869 is an apocalyptic number.

It is an amenable number.

157247161869 is a deficient number, since it is larger than the sum of its proper divisors (82370330067).

157247161869 is an frugal number, since it uses more digits than its factorization.

157247161869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173076 (or 86543 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 57.

The spelling of 157247161869 in words is "one hundred fifty-seven billion, two hundred forty-seven million, one hundred sixty-one thousand, eight hundred sixty-nine".