105157638431 has 4 divisors (see below), whose sum is σ = 110692251000. Its totient is φ = 99623025864.

The previous prime is 105157638407. The next prime is 105157638479. The reversal of 105157638431 is 134836751501.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105157638431 - 2³⁴ = 87977769247 is a prime.

It is a super-2 number, since 2×105157638431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105157638401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2767306256 + ... + 2767306293.

It is an arithmetic number, because the mean of its divisors is an integer number (27673062750).

Almost surely, 2^105157638431 is an apocalyptic number.

105157638431 is a deficient number, since it is larger than the sum of its proper divisors (5534612569).

105157638431 is an equidigital number, since it uses as much as digits as its factorization.

105157638431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5534612568.

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 105157638431 in words is "one hundred five billion, one hundred fifty-seven million, six hundred thirty-eight thousand, four hundred thirty-one".