9155610997431 has 8 divisors (see below), whose sum is σ = 12344644041840. Its totient is φ = 6035159308992.

The previous prime is 9155610997397. The next prime is 9155610997439. The reversal of 9155610997431 is 1347990165519.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9155610997431 - 2¹¹ = 9155610995383 is a prime.

It is a super-2 number, since 2×9155610997431² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9155610997439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17145338680 + ... + 17145339213.

It is an arithmetic number, because the mean of its divisors is an integer number (1543080505230).

Almost surely, 2^{9155610997431} is an apocalyptic number.

9155610997431 is a deficient number, since it is larger than the sum of its proper divisors (3189033044409).

9155610997431 is a wasteful number, since it uses less digits than its factorization.

9155610997431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34290677985.

The product of its (nonzero) digits is 9185400, while the sum is 60.

The spelling of 9155610997431 in words is "nine trillion, one hundred fifty-five billion, six hundred ten million, nine hundred ninety-seven thousand, four hundred thirty-one".