20492364590 has 32 divisors (see below), whose sum is σ = 37128611520. Its totient is φ = 8143147264.

The previous prime is 20492364551. The next prime is 20492364593. The reversal of 20492364590 is 9546329402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20492364593) 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 15 ways as a sum of consecutive naturals, for example, 4956164 + ... + 4960296.

It is an arithmetic number, because the mean of its divisors is an integer number (1160269110).

Almost surely, 2^20492364590 is an apocalyptic number.

20492364590 is a deficient number, since it is larger than the sum of its proper divisors (16636246930).

20492364590 is a wasteful number, since it uses less digits than its factorization.

20492364590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7276.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 20492364590 in words is "twenty billion, four hundred ninety-two million, three hundred sixty-four thousand, five hundred ninety".