18630957008401 has 16 divisors (see below), whose sum is σ = 19967107886208. Its totient is φ = 17321550112000.

The previous prime is 18630957008393. The next prime is 18630957008431. The reversal of 18630957008401 is 10480075903681.

It is a cyclic number.

It is not a de Polignac number, because 18630957008401 - 2³ = 18630957008393 is a prime.

It is a super-2 number, since 2×18630957008401² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18630957008431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10312716 + ... + 11983906.

It is an arithmetic number, because the mean of its divisors is an integer number (1247944242888).

Almost surely, 2^{18630957008401} is an apocalyptic number.

It is an amenable number.

18630957008401 is a deficient number, since it is larger than the sum of its proper divisors (1336150877807).

18630957008401 is a wasteful number, since it uses less digits than its factorization.

18630957008401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1679192.

The product of its (nonzero) digits is 1451520, while the sum is 52.

The spelling of 18630957008401 in words is "eighteen trillion, six hundred thirty billion, nine hundred fifty-seven million, eight thousand, four hundred one".