690741940032 has 224 divisors, whose sum is σ = 2062861772160. Its totient is φ = 229447862784.

The previous prime is 690741939983. The next prime is 690741940043. The reversal of 690741940032 is 230049147096.

It is a happy number.

It is a super-2 number, since 2×690741940032² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 690741940032.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41002203 + ... + 41019045.

It is an arithmetic number, because the mean of its divisors is an integer number (9209204340).

Almost surely, 2^690741940032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 690741940032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1031430886080).

690741940032 is an abundant number, since it is smaller than the sum of its proper divisors (1372119832128).

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

690741940032 is an equidigital number, since it uses as much as digits as its factorization.

690741940032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17169 (or 17141 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 690741940032 in words is "six hundred ninety billion, seven hundred forty-one million, nine hundred forty thousand, thirty-two".