690252997854 has 32 divisors (see below), whose sum is σ = 1581282627840. Its totient is φ = 196769956032.

The previous prime is 690252997853. The next prime is 690252997913. The reversal of 690252997854 is 458799252096.

It is a super-3 number, since 3×690252997854³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690252997853) 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, 18530599 + ... + 18567810.

It is an arithmetic number, because the mean of its divisors is an integer number (49415082120).

Almost surely, 2^690252997854 is an apocalyptic number.

690252997854 is an abundant number, since it is smaller than the sum of its proper divisors (891029629986).

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

690252997854 is a wasteful number, since it uses less digits than its factorization.

690252997854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37098864.

The product of its (nonzero) digits is 97977600, while the sum is 66.

The spelling of 690252997854 in words is "six hundred ninety billion, two hundred fifty-two million, nine hundred ninety-seven thousand, eight hundred fifty-four".