157631457405 has 16 divisors (see below), whose sum is σ = 265484560320. Its totient is φ = 79645367808.

The previous prime is 157631457391. The next prime is 157631457427. The reversal of 157631457405 is 504754136751.

It is not a de Polignac number, because 157631457405 - 2⁹ = 157631456893 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276546132 + ... + 276546701.

It is an arithmetic number, because the mean of its divisors is an integer number (16592785020).

Almost surely, 2^157631457405 is an apocalyptic number.

157631457405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157631457405 is a deficient number, since it is larger than the sum of its proper divisors (107853102915).

157631457405 is a wasteful number, since it uses less digits than its factorization.

157631457405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553092860.

The product of its (nonzero) digits is 1764000, while the sum is 48.

The spelling of 157631457405 in words is "one hundred fifty-seven billion, six hundred thirty-one million, four hundred fifty-seven thousand, four hundred five".