634880551896 has 48 divisors (see below), whose sum is σ = 1778760172800. Its totient is φ = 204329372352.

The previous prime is 634880551873. The next prime is 634880551897. The reversal of 634880551896 is 698155088436.

634880551896 is a `hidden beast` number, since 6 + 3 + 488 + 0 + 55 + 18 + 96 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634880551897) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152028696 + ... + 152032871.

It is an arithmetic number, because the mean of its divisors is an integer number (37057503600).

Almost surely, 2^634880551896 is an apocalyptic number.

It is an amenable number.

634880551896 is an abundant number, since it is smaller than the sum of its proper divisors (1143879620904).

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

634880551896 is a wasteful number, since it uses less digits than its factorization.

634880551896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304061608 (or 304061601 counting only the distinct ones).

The product of its (nonzero) digits is 49766400, while the sum is 63.

The spelling of 634880551896 in words is "six hundred thirty-four billion, eight hundred eighty million, five hundred fifty-one thousand, eight hundred ninety-six".