690946257054 has 16 divisors (see below), whose sum is σ = 1382694561792. Its totient is φ = 230181744408.

The previous prime is 690946257019. The next prime is 690946257181. The reversal of 690946257054 is 450752649096.

It is a junction number, because it is equal to n+sod(n) for n = 690946256985 and 690946257003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33407454 + ... + 33428129.

It is an arithmetic number, because the mean of its divisors is an integer number (86418410112).

Almost surely, 2^690946257054 is an apocalyptic number.

690946257054 is an abundant number, since it is smaller than the sum of its proper divisors (691748304738).

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

690946257054 is a wasteful number, since it uses less digits than its factorization.

690946257054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66837311.

The product of its (nonzero) digits is 16329600, while the sum is 57.

The spelling of 690946257054 in words is "six hundred ninety billion, nine hundred forty-six million, two hundred fifty-seven thousand, fifty-four".