690972506249 has 8 divisors (see below), whose sum is σ = 704201608320. Its totient is φ = 677793994416.

The previous prime is 690972506239. The next prime is 690972506269. The reversal of 690972506249 is 942605279096.

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

It is a cyclic number.

It is not a de Polignac number, because 690972506249 - 2⁴ = 690972506233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is not an unprimeable number, because it can be changed into a prime (690972506219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12619982 + ... + 12674615.

It is an arithmetic number, because the mean of its divisors is an integer number (88025201040).

Almost surely, 2^690972506249 is an apocalyptic number.

It is an amenable number.

690972506249 is a deficient number, since it is larger than the sum of its proper divisors (13229102071).

690972506249 is a wasteful number, since it uses less digits than its factorization.

690972506249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25295119.

The product of its (nonzero) digits is 14696640, while the sum is 59.

The spelling of 690972506249 in words is "six hundred ninety billion, nine hundred seventy-two million, five hundred six thousand, two hundred forty-nine".