51020276472 has 96 divisors (see below), whose sum is σ = 151367776560. Its totient is φ = 15396480000.

The previous prime is 51020276441. The next prime is 51020276521. The reversal of 51020276472 is 27467202015.

It is a happy number.

51020276472 is a `hidden beast` number, since 5 + 1 + 0 + 2 + 0 + 2 + 7 + 647 + 2 = 666.

51020276472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51020276472² (a number of 22 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57222 + ... + 324522.

Almost surely, 2^51020276472 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 51020276472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75683888280).

51020276472 is an abundant number, since it is smaller than the sum of its proper divisors (100347500088).

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

51020276472 is a wasteful number, since it uses less digits than its factorization.

51020276472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267565 (or 267558 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

Adding to 51020276472 its reverse (27467202015), we get a palindrome (78487478487).

The spelling of 51020276472 in words is "fifty-one billion, twenty million, two hundred seventy-six thousand, four hundred seventy-two".