51451434004 has 12 divisors (see below), whose sum is σ = 90044706528. Its totient is φ = 25724375000.

The previous prime is 51451433993. The next prime is 51451434029. The reversal of 51451434004 is 40043415415.

It is a super-2 number, since 2×51451434004² (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 3 ways as a sum of consecutive naturals, for example, 246622 + ... + 404629.

It is an arithmetic number, because the mean of its divisors is an integer number (7503725544).

Almost surely, 2^51451434004 is an apocalyptic number.

It is an amenable number.

51451434004 is a deficient number, since it is larger than the sum of its proper divisors (38593272524).

51451434004 is a wasteful number, since it uses less digits than its factorization.

51451434004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671006 (or 671004 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 51451434004 its reverse (40043415415), we get a palindrome (91494849419).

The spelling of 51451434004 in words is "fifty-one billion, four hundred fifty-one million, four hundred thirty-four thousand, four".