690689952315 has 32 divisors (see below), whose sum is σ = 1339519910400. Its totient is φ = 334879976160.

The previous prime is 690689952313. The next prime is 690689952317. The reversal of 690689952315 is 513259986096.

690689952315 is a `hidden beast` number, since 6 + 9 + 0 + 6 + 8 + 99 + 523 + 15 = 666.

It is an interprime number because it is at equal distance from previous prime (690689952313) and next prime (690689952317).

It is not a de Polignac number, because 690689952315 - 2¹ = 690689952313 is a prime.

It is a super-3 number, since 3×690689952315³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (690689952311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 232554055 + ... + 232557024.

It is an arithmetic number, because the mean of its divisors is an integer number (41859997200).

Almost surely, 2^690689952315 is an apocalyptic number.

690689952315 is a deficient number, since it is larger than the sum of its proper divisors (648829958085).

690689952315 is a wasteful number, since it uses less digits than its factorization.

690689952315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465111104 (or 465111098 counting only the distinct ones).

The product of its (nonzero) digits is 31492800, while the sum is 63.

The spelling of 690689952315 in words is "six hundred ninety billion, six hundred eighty-nine million, nine hundred fifty-two thousand, three hundred fifteen".