20725014786 has 16 divisors (see below), whose sum is σ = 47371462464. Its totient is φ = 5921432784.

The previous prime is 20725014757. The next prime is 20725014787. The reversal of 20725014786 is 68741052702.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 493452733 = 20725014786 / (2 + 0 + 7 + 2 + 5 + 0 + 1 + 4 + 7 + 8 + 6).

It is not an unprimeable number, because it can be changed into a prime (20725014787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246726325 + ... + 246726408.

It is an arithmetic number, because the mean of its divisors is an integer number (2960716404).

Almost surely, 2^20725014786 is an apocalyptic number.

20725014786 is an abundant number, since it is smaller than the sum of its proper divisors (26646447678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20725014786 is a wasteful number, since it uses less digits than its factorization.

20725014786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493452745.

The product of its (nonzero) digits is 188160, while the sum is 42.

The spelling of 20725014786 in words is "twenty billion, seven hundred twenty-five million, fourteen thousand, seven hundred eighty-six".