51469476240 has 160 divisors (see below), whose sum is σ = 196375931136. Its totient is φ = 10859489280.

The previous prime is 51469476221. The next prime is 51469476251. The reversal of 51469476240 is 4267496415.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 51469476240.

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, 1156491 + ... + 1200170.

Almost surely, 2^51469476240 is an apocalyptic number.

It is an amenable number.

51469476240 is an abundant number, since it is smaller than the sum of its proper divisors (144906454896).

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

51469476240 is a wasteful number, since it uses less digits than its factorization.

51469476240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2356697 (or 2356691 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 51469476240 in words is "fifty-one billion, four hundred sixty-nine million, four hundred seventy-six thousand, two hundred forty".