690575740938 has 32 divisors (see below), whose sum is σ = 1534687600320. Its totient is φ = 230180687280.

The previous prime is 690575740931. The next prime is 690575740949. The reversal of 690575740938 is 839047575096.

690575740938 is a `hidden beast` number, since 6 + 9 + 0 + 57 + 574 + 0 + 9 + 3 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (690575740931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 845028 + ... + 1447488.

It is an arithmetic number, because the mean of its divisors is an integer number (47958987510).

Almost surely, 2^690575740938 is an apocalyptic number.

690575740938 is an abundant number, since it is smaller than the sum of its proper divisors (844111859382).

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

690575740938 is a wasteful number, since it uses less digits than its factorization.

690575740938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623699 (or 623693 counting only the distinct ones).

The product of its (nonzero) digits is 57153600, while the sum is 63.

The spelling of 690575740938 in words is "six hundred ninety billion, five hundred seventy-five million, seven hundred forty thousand, nine hundred thirty-eight".