1649674418264 has 32 divisors (see below), whose sum is σ = 3123686392320. Its totient is φ = 816694029216.

The previous prime is 1649674418257. The next prime is 1649674418309. The reversal of 1649674418264 is 4628144769461.

It is a junction number, because it is equal to n+sod(n) for n = 1649674418197 and 1649674418206.

It is a congruent number.

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, 4915889 + ... + 5240735.

It is an arithmetic number, because the mean of its divisors is an integer number (97615199760).

Almost surely, 2^{1649674418264} is an apocalyptic number.

It is an amenable number.

1649674418264 is a deficient number, since it is larger than the sum of its proper divisors (1474011974056).

1649674418264 is a wasteful number, since it uses less digits than its factorization.

1649674418264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331119 (or 331115 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 62.

The spelling of 1649674418264 in words is "one trillion, six hundred forty-nine billion, six hundred seventy-four million, four hundred eighteen thousand, two hundred sixty-four".