1055718707638 has 8 divisors (see below), whose sum is σ = 1809803498832. Its totient is φ = 452450874696.

The previous prime is 1055718707621. The next prime is 1055718707689. The reversal of 1055718707638 is 8367078175501.

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

It is a super-2 number, since 2×1055718707638² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37704239545 + ... + 37704239572.

It is an arithmetic number, because the mean of its divisors is an integer number (226225437354).

Almost surely, 2^{1055718707638} is an apocalyptic number.

1055718707638 is a deficient number, since it is larger than the sum of its proper divisors (754084791194).

1055718707638 is an equidigital number, since it uses as much as digits as its factorization.

1055718707638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75408479126.

The product of its (nonzero) digits is 9878400, while the sum is 58.

The spelling of 1055718707638 in words is "one trillion, fifty-five billion, seven hundred eighteen million, seven hundred seven thousand, six hundred thirty-eight".