20732470486 has 32 divisors (see below), whose sum is σ = 38846626560. Its totient is φ = 8079435936.

The previous prime is 20732470477. The next prime is 20732470529. The reversal of 20732470486 is 68407423702.

It is a super-2 number, since 2×20732470486² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 837916 + ... + 862303.

It is an arithmetic number, because the mean of its divisors is an integer number (1213957080).

Almost surely, 2^20732470486 is an apocalyptic number.

20732470486 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20732470486 is a deficient number, since it is larger than the sum of its proper divisors (18114156074).

20732470486 is a wasteful number, since it uses less digits than its factorization.

20732470486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700308.

The product of its (nonzero) digits is 451584, while the sum is 43.

The spelling of 20732470486 in words is "twenty billion, seven hundred thirty-two million, four hundred seventy thousand, four hundred eighty-six".