20488662507 has 16 divisors (see below), whose sum is σ = 28263741440. Its totient is φ = 13188355200.

The previous prime is 20488662473. The next prime is 20488662517. The reversal of 20488662507 is 70526688402.

It is not a de Polignac number, because 20488662507 - 2⁶ = 20488662443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20488662517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210094 + ... + 291747.

It is an arithmetic number, because the mean of its divisors is an integer number (1766483840).

Almost surely, 2^20488662507 is an apocalyptic number.

20488662507 is a deficient number, since it is larger than the sum of its proper divisors (7775078933).

20488662507 is a wasteful number, since it uses less digits than its factorization.

20488662507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502314.

The product of its (nonzero) digits is 1290240, while the sum is 48.

The spelling of 20488662507 in words is "twenty billion, four hundred eighty-eight million, six hundred sixty-two thousand, five hundred seven".