51663472026 has 16 divisors (see below), whose sum is σ = 103376196000. Its totient is φ = 17212948688.

The previous prime is 51663472013. The next prime is 51663472037. The reversal of 51663472026 is 62027436615.

It is a super-2 number, since 2×51663472026² (a number of 22 digits) contains 22 as substring.

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, 2038521 + ... + 2063708.

It is an arithmetic number, because the mean of its divisors is an integer number (6461012250).

Almost surely, 2^51663472026 is an apocalyptic number.

51663472026 is an abundant number, since it is smaller than the sum of its proper divisors (51712723974).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51663472026 is a wasteful number, since it uses less digits than its factorization.

51663472026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4104333.

The product of its (nonzero) digits is 362880, while the sum is 42.

The spelling of 51663472026 in words is "fifty-one billion, six hundred sixty-three million, four hundred seventy-two thousand, twenty-six".