51426293040 has 160 divisors (see below), whose sum is σ = 177207705600. Its totient is φ = 13708051200.

The previous prime is 51426293011. The next prime is 51426293053. The reversal of 51426293040 is 4039262415.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 51426292986 and 51426293004.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10043601 + ... + 10048719.

It is an arithmetic number, because the mean of its divisors is an integer number (1107548160).

Almost surely, 2^51426293040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51426293040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88603852800).

51426293040 is an abundant number, since it is smaller than the sum of its proper divisors (125781412560).

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

51426293040 is a wasteful number, since it uses less digits than its factorization.

51426293040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9792 (or 9780 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 51426293040 in words is "fifty-one billion, four hundred twenty-six million, two hundred ninety-three thousand, forty".