690580526427 has 24 divisors (see below), whose sum is σ = 1088630412480. Its totient is φ = 418363300080.

The previous prime is 690580526423. The next prime is 690580526431. The reversal of 690580526427 is 724625085096.

690580526427 is a `hidden beast` number, since 6 + 9 + 0 + 580 + 52 + 6 + 4 + 2 + 7 = 666.

690580526427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (690580526423) and next prime (690580526431).

It is not a de Polignac number, because 690580526427 - 2² = 690580526423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (690580526423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1174933 + ... + 1661814.

It is an arithmetic number, because the mean of its divisors is an integer number (45359600520).

Almost surely, 2^690580526427 is an apocalyptic number.

690580526427 is a deficient number, since it is larger than the sum of its proper divisors (398049886053).

690580526427 is a wasteful number, since it uses less digits than its factorization.

690580526427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2839223 (or 2839220 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The spelling of 690580526427 in words is "six hundred ninety billion, five hundred eighty million, five hundred twenty-six thousand, four hundred twenty-seven".