51292651326 has 16 divisors (see below), whose sum is σ = 117240345984. Its totient is φ = 14655043224.

The previous prime is 51292651297. The next prime is 51292651343. The reversal of 51292651326 is 62315629215.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1221253603 = 51292651326 / (5 + 1 + 2 + 9 + 2 + 6 + 5 + 1 + 3 + 2 + 6).

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, 610626760 + ... + 610626843.

It is an arithmetic number, because the mean of its divisors is an integer number (7327521624).

Almost surely, 2^51292651326 is an apocalyptic number.

51292651326 is an abundant number, since it is smaller than the sum of its proper divisors (65947694658).

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

51292651326 is a wasteful number, since it uses less digits than its factorization.

51292651326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221253615.

The product of its digits is 194400, while the sum is 42.

The spelling of 51292651326 in words is "fifty-one billion, two hundred ninety-two million, six hundred fifty-one thousand, three hundred twenty-six".