3121947623068 has 6 divisors (see below), whose sum is σ = 5463408340376. Its totient is φ = 1560973811532.

The previous prime is 3121947623051. The next prime is 3121947623141. The reversal of 3121947623068 is 8603267491213.

It is a happy number.

It is a super-2 number, since 2×3121947623068² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 390243452880 + ... + 390243452887.

Almost surely, 2^{3121947623068} is an apocalyptic number.

It is an amenable number.

3121947623068 is a deficient number, since it is larger than the sum of its proper divisors (2341460717308).

3121947623068 is a wasteful number, since it uses less digits than its factorization.

3121947623068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780486905771 (or 780486905769 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 52.

The spelling of 3121947623068 in words is "three trillion, one hundred twenty-one billion, nine hundred forty-seven million, six hundred twenty-three thousand, sixty-eight".