90190020002 has 8 divisors (see below), whose sum is σ = 142405294800. Its totient is φ = 42721588404.

The previous prime is 90190019993. The next prime is 90190020007. The reversal of 90190020002 is 20002009109.

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

It is a super-2 number, since 2×90190020002² (a number of 23 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 90190020002.

It is not an unprimeable number, because it can be changed into a prime (90190020007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1186710752 + ... + 1186710827.

It is an arithmetic number, because the mean of its divisors is an integer number (17800661850).

Almost surely, 2^90190020002 is an apocalyptic number.

90190020002 is a deficient number, since it is larger than the sum of its proper divisors (52215274798).

90190020002 is a wasteful number, since it uses less digits than its factorization.

90190020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373421600.

The product of its (nonzero) digits is 324, while the sum is 23.

The spelling of 90190020002 in words is "ninety billion, one hundred ninety million, twenty thousand, two".