633464378406 has 48 divisors (see below), whose sum is σ = 1410636786624. Its totient is φ = 205345775232.

The previous prime is 633464378363. The next prime is 633464378461. The reversal of 633464378406 is 604873464336.

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, 2251815 + ... + 2517458.

It is an arithmetic number, because the mean of its divisors is an integer number (29388266388).

Almost surely, 2^633464378406 is an apocalyptic number.

633464378406 is an abundant number, since it is smaller than the sum of its proper divisors (777172408218).

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

633464378406 is a wasteful number, since it uses less digits than its factorization.

633464378406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4769485 (or 4769482 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 54.

The spelling of 633464378406 in words is "six hundred thirty-three billion, four hundred sixty-four million, three hundred seventy-eight thousand, four hundred six".