51173834502 has 16 divisors (see below), whose sum is σ = 116968764672. Its totient is φ = 14621095560.

The previous prime is 51173834479. The next prime is 51173834519. The reversal of 51173834502 is 20543837115.

It is a happy number.

It is a super-2 number, since 2×51173834502² (a number of 22 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 in 7 ways as a sum of consecutive naturals, for example, 609212274 + ... + 609212357.

It is an arithmetic number, because the mean of its divisors is an integer number (7310547792).

Almost surely, 2^51173834502 is an apocalyptic number.

51173834502 is an abundant number, since it is smaller than the sum of its proper divisors (65794930170).

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

51173834502 is a wasteful number, since it uses less digits than its factorization.

51173834502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218424643.

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 51173834502 in words is "fifty-one billion, one hundred seventy-three million, eight hundred thirty-four thousand, five hundred two".