906778460784 has 80 divisors (see below), whose sum is σ = 2742451971840. Its totient is φ = 252760542720.

The previous prime is 906778460747. The next prime is 906778460813. The reversal of 906778460784 is 487064877609.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32897754 + ... + 32925305.

It is an arithmetic number, because the mean of its divisors is an integer number (34280649648).

Almost surely, 2^906778460784 is an apocalyptic number.

It is an amenable number.

906778460784 is an abundant number, since it is smaller than the sum of its proper divisors (1835673511056).

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

906778460784 is a wasteful number, since it uses less digits than its factorization.

906778460784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65823118 (or 65823112 counting only the distinct ones).

The product of its (nonzero) digits is 113799168, while the sum is 66.

The spelling of 906778460784 in words is "nine hundred six billion, seven hundred seventy-eight million, four hundred sixty thousand, seven hundred eighty-four".