690252379047 has 48 divisors (see below), whose sum is σ = 1243517533440. Its totient is φ = 358438348800.

The previous prime is 690252379013. The next prime is 690252379111. The reversal of 690252379047 is 740973252096.

690252379047 is a `hidden beast` number, since 6 + 9 + 0 + 2 + 523 + 79 + 0 + 47 = 666.

It is not a de Polignac number, because 690252379047 - 2⁷ = 690252378919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 690252378984 and 690252379002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690252379007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1678272 + ... + 2048682.

It is an arithmetic number, because the mean of its divisors is an integer number (25906615280).

Almost surely, 2^690252379047 is an apocalyptic number.

690252379047 is a deficient number, since it is larger than the sum of its proper divisors (553265154393).

690252379047 is a wasteful number, since it uses less digits than its factorization.

690252379047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373124 (or 373121 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 54.

The spelling of 690252379047 in words is "six hundred ninety billion, two hundred fifty-two million, three hundred seventy-nine thousand, forty-seven".