20467638102 has 16 divisors (see below), whose sum is σ = 40947694272. Its totient is φ = 6820476360.

The previous prime is 20467638101. The next prime is 20467638137. The reversal of 20467638102 is 20183676402.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20467638101) 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, 495924 + ... + 535607.

It is an arithmetic number, because the mean of its divisors is an integer number (2559230892).

Almost surely, 2^20467638102 is an apocalyptic number.

20467638102 is an abundant number, since it is smaller than the sum of its proper divisors (20480056170).

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

20467638102 is a wasteful number, since it uses less digits than its factorization.

20467638102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034843.

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 20467638102 in words is "twenty billion, four hundred sixty-seven million, six hundred thirty-eight thousand, one hundred two".