51101000448 has 72 divisors (see below), whose sum is σ = 136097924928. Its totient is φ = 17021801472.

The previous prime is 51101000429. The next prime is 51101000497. The reversal of 51101000448 is 84400010115.

51101000448 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 2×51101000448² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 1116511 + ... + 1161377.

Almost surely, 2^51101000448 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 51101000448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68048962464).

51101000448 is an abundant number, since it is smaller than the sum of its proper divisors (84996924480).

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

51101000448 is a wasteful number, since it uses less digits than its factorization.

51101000448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46369 (or 46355 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

The spelling of 51101000448 in words is "fifty-one billion, one hundred one million, four hundred forty-eight", and thus it is an aban number.