18631916001746 has 16 divisors (see below), whose sum is σ = 28542701666304. Its totient is φ = 9117684780384.

The previous prime is 18631916001707. The next prime is 18631916001833. The reversal of 18631916001746 is 64710061913681.

It is a happy number.

It is a super-2 number, since 2×18631916001746² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15435311 + ... + 16598573.

It is an arithmetic number, because the mean of its divisors is an integer number (1783918854144).

Almost surely, 2^{18631916001746} is an apocalyptic number.

18631916001746 is a deficient number, since it is larger than the sum of its proper divisors (9910785664558).

18631916001746 is a wasteful number, since it uses less digits than its factorization.

18631916001746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333705.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The spelling of 18631916001746 in words is "eighteen trillion, six hundred thirty-one billion, nine hundred sixteen million, one thousand, seven hundred forty-six".