951643401632 has 384 divisors, whose sum is σ = 2464889978880. Its totient is φ = 350977536000.

The previous prime is 951643401629. The next prime is 951643401671. The reversal of 951643401632 is 236104346159.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 511360382 + ... + 511362242.

It is an arithmetic number, because the mean of its divisors is an integer number (6418984320).

Almost surely, 2^951643401632 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 951643401632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1232444989440).

951643401632 is an abundant number, since it is smaller than the sum of its proper divisors (1513246577248).

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

951643401632 is a wasteful number, since it uses less digits than its factorization.

951643401632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2076 (or 2068 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 951643401632 in words is "nine hundred fifty-one billion, six hundred forty-three million, four hundred one thousand, six hundred thirty-two".