51623310000 has 100 divisors (see below), whose sum is σ = 166647024632. Its totient is φ = 13766208000.

The previous prime is 51623309957. The next prime is 51623310019. The reversal of 51623310000 is 1332615.

It is a tau number, because it is divible by the number of its divisors (100).

It is a super-2 number, since 2×51623310000² (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 19 ways as a sum of consecutive naturals, for example, 830389 + ... + 890388.

Almost surely, 2^51623310000 is an apocalyptic number.

51623310000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51623310000 is an abundant number, since it is smaller than the sum of its proper divisors (115023714632).

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

51623310000 is a wasteful number, since it uses less digits than its factorization.

51623310000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720808 (or 1720787 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

Adding to 51623310000 its reverse (1332615), we get a palindrome (51624642615).

The spelling of 51623310000 in words is "fifty-one billion, six hundred twenty-three million, three hundred ten thousand".