906991454832 has 40 divisors (see below), whose sum is σ = 2423856477840. Its totient is φ = 291905295360.

The previous prime is 906991454813. The next prime is 906991454839. The reversal of 906991454832 is 238454199609.

906991454832 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 2×906991454832² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (906991454839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325785769 + ... + 325788552.

It is an arithmetic number, because the mean of its divisors is an integer number (60596411946).

Almost surely, 2^906991454832 is an apocalyptic number.

It is an amenable number.

906991454832 is an abundant number, since it is smaller than the sum of its proper divisors (1516865023008).

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

906991454832 is a wasteful number, since it uses less digits than its factorization.

906991454832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651574361 (or 651574355 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 60.

The spelling of 906991454832 in words is "nine hundred six billion, nine hundred ninety-one million, four hundred fifty-four thousand, eight hundred thirty-two".