1626365861864 has 32 divisors (see below), whose sum is σ = 3239932024800. Its totient is φ = 763183972800.

The previous prime is 1626365861851. The next prime is 1626365861873. The reversal of 1626365861864 is 4681685636261.

It is a junction number, because it is equal to n+sod(n) for n = 1626365861797 and 1626365861806.

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, 49982687 + ... + 50015214.

It is an arithmetic number, because the mean of its divisors is an integer number (101247875775).

Almost surely, 2^{1626365861864} is an apocalyptic number.

It is an amenable number.

1626365861864 is a deficient number, since it is larger than the sum of its proper divisors (1613566162936).

1626365861864 is a wasteful number, since it uses less digits than its factorization.

1626365861864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99998033 (or 99998029 counting only the distinct ones).

The product of its digits is 59719680, while the sum is 62.

The spelling of 1626365861864 in words is "one trillion, six hundred twenty-six billion, three hundred sixty-five million, eight hundred sixty-one thousand, eight hundred sixty-four".