690002508542 has 8 divisors (see below), whose sum is σ = 1035719042736. Its totient is φ = 344762827632.

The previous prime is 690002508529. The next prime is 690002508553. The reversal of 690002508542 is 245805200096.

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

It is a super-2 number, since 2×690002508542² (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 690002508542.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119209703 + ... + 119215490.

It is an arithmetic number, because the mean of its divisors is an integer number (129464880342).

Almost surely, 2^690002508542 is an apocalyptic number.

690002508542 is a deficient number, since it is larger than the sum of its proper divisors (345716534194).

690002508542 is a wasteful number, since it uses less digits than its factorization.

690002508542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238426642.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 690002508542 in words is "six hundred ninety billion, two million, five hundred eight thousand, five hundred forty-two".