51440115026 has 8 divisors (see below), whose sum is σ = 78089813424. Its totient is φ = 25410177220.

The previous prime is 51440115011. The next prime is 51440115029. The reversal of 51440115026 is 62051104415.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×51440115026² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51440115026.

It is not an unprimeable number, because it can be changed into a prime (51440115029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154939940 + ... + 154940271.

It is an arithmetic number, because the mean of its divisors is an integer number (9761226678).

Almost surely, 2^51440115026 is an apocalyptic number.

51440115026 is a deficient number, since it is larger than the sum of its proper divisors (26649698398).

51440115026 is a wasteful number, since it uses less digits than its factorization.

51440115026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309880296.

The product of its (nonzero) digits is 4800, while the sum is 29.

The spelling of 51440115026 in words is "fifty-one billion, four hundred forty million, one hundred fifteen thousand, twenty-six".