1621364311052 has 12 divisors (see below), whose sum is σ = 2837459438520. Its totient is φ = 810661614336.

The previous prime is 1621364311037. The next prime is 1621364311111. The reversal of 1621364311052 is 2501134631261.

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, 4957013 + ... + 5273964.

It is an arithmetic number, because the mean of its divisors is an integer number (236454953210).

Almost surely, 2^{1621364311052} is an apocalyptic number.

It is an amenable number.

1621364311052 is a deficient number, since it is larger than the sum of its proper divisors (1216095127468).

1621364311052 is a wasteful number, since it uses less digits than its factorization.

1621364311052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10270600 (or 10270598 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 1621364311052 in words is "one trillion, six hundred twenty-one billion, three hundred sixty-four million, three hundred eleven thousand, fifty-two".