20753970490 has 16 divisors (see below), whose sum is σ = 40753251360. Its totient is φ = 7546898320.

The previous prime is 20753970467. The next prime is 20753970499. The reversal of 20753970490 is 9407935702.

It is a super-6 number, since 6×20753970490⁶ (a number of 63 digits) contains 666666 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20753970490.

It is not an unprimeable number, because it can be changed into a prime (20753970499) 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, 94336120 + ... + 94336339.

It is an arithmetic number, because the mean of its divisors is an integer number (2547078210).

Almost surely, 2^20753970490 is an apocalyptic number.

20753970490 is a deficient number, since it is larger than the sum of its proper divisors (19999280870).

20753970490 is a wasteful number, since it uses less digits than its factorization.

20753970490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188672477.

The product of its (nonzero) digits is 476280, while the sum is 46.

The spelling of 20753970490 in words is "twenty billion, seven hundred fifty-three million, nine hundred seventy thousand, four hundred ninety".