690866491622 has 8 divisors (see below), whose sum is σ = 1036579753872. Its totient is φ = 345339907000.

The previous prime is 690866491607. The next prime is 690866491631. The reversal of 690866491622 is 226194668096.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46660154 + ... + 46674957.

It is an arithmetic number, because the mean of its divisors is an integer number (129572469234).

Almost surely, 2^690866491622 is an apocalyptic number.

690866491622 is a deficient number, since it is larger than the sum of its proper divisors (345713262250).

690866491622 is a wasteful number, since it uses less digits than its factorization.

690866491622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93338814.

The product of its (nonzero) digits is 13436928, while the sum is 59.

The spelling of 690866491622 in words is "six hundred ninety billion, eight hundred sixty-six million, four hundred ninety-one thousand, six hundred twenty-two".