51949940617576 has 32 divisors (see below), whose sum is σ = 97992044619840. Its totient is φ = 25818737087488.

The previous prime is 51949940617559. The next prime is 51949940617591. The reversal of 51949940617576 is 67571604994915.

It is a junction number, because it is equal to n+sod(n) for n = 51949940617499 and 51949940617508.

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, 51069960 + ... + 52077256.

It is an arithmetic number, because the mean of its divisors is an integer number (3062251394370).

Almost surely, 2^{51949940617576} is an apocalyptic number.

It is an amenable number.

51949940617576 is a deficient number, since it is larger than the sum of its proper divisors (46042104002264).

51949940617576 is a wasteful number, since it uses less digits than its factorization.

51949940617576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046073 (or 1046069 counting only the distinct ones).

The product of its (nonzero) digits is 514382400, while the sum is 73.

The spelling of 51949940617576 in words is "fifty-one trillion, nine hundred forty-nine billion, nine hundred forty million, six hundred seventeen thousand, five hundred seventy-six".