26972323240 has 64 divisors (see below), whose sum is σ = 64757044800. Its totient is φ = 10081055232.

The previous prime is 26972323223. The next prime is 26972323241. The reversal of 26972323240 is 4232327962.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 26972323193 and 26972323202.

It is not an unprimeable number, because it can be changed into a prime (26972323241) 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, 187602 + ... + 298561.

It is an arithmetic number, because the mean of its divisors is an integer number (1011828825).

Almost surely, 2^26972323240 is an apocalyptic number.

26972323240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26972323240 is an abundant number, since it is smaller than the sum of its proper divisors (37784721560).

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

26972323240 is a wasteful number, since it uses less digits than its factorization.

26972323240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486266 (or 486262 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 40.

The spelling of 26972323240 in words is "twenty-six billion, nine hundred seventy-two million, three hundred twenty-three thousand, two hundred forty".