20260278368 has 48 divisors (see below), whose sum is σ = 43528181760. Its totient is φ = 9206121600.

The previous prime is 20260278361. The next prime is 20260278407. The reversal of 20260278368 is 86387206202.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20260278361) 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, 1284353 + ... + 1300031.

It is an arithmetic number, because the mean of its divisors is an integer number (906837120).

Almost surely, 2^20260278368 is an apocalyptic number.

It is an amenable number.

20260278368 is an abundant number, since it is smaller than the sum of its proper divisors (23267903392).

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

20260278368 is a wasteful number, since it uses less digits than its factorization.

20260278368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19371 (or 19363 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 20260278368 in words is "twenty billion, two hundred sixty million, two hundred seventy-eight thousand, three hundred sixty-eight".