634740037536 has 96 divisors (see below), whose sum is σ = 1818233258688. Its totient is φ = 192285296640.

The previous prime is 634740037531. The next prime is 634740037567. The reversal of 634740037536 is 635730047436.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (634740037531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3342780 + ... + 3527556.

It is an arithmetic number, because the mean of its divisors is an integer number (18939929778).

Almost surely, 2^634740037536 is an apocalyptic number.

634740037536 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

634740037536 is an abundant number, since it is smaller than the sum of its proper divisors (1183493221152).

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

634740037536 is a wasteful number, since it uses less digits than its factorization.

634740037536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188054 (or 188046 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 48.

The spelling of 634740037536 in words is "six hundred thirty-four billion, seven hundred forty million, thirty-seven thousand, five hundred thirty-six".