10947780740 has 24 divisors (see below), whose sum is σ = 24758827800. Its totient is φ = 4042257408.

The previous prime is 10947780707. The next prime is 10947780757. The reversal of 10947780740 is 4708774901.

It can be written as a sum of positive squares in 4 ways, for example, as 583319104 + 10364461636 = 24152^2 + 101806^2 .

It is a super-2 number, since 2×10947780740² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21053165 + ... + 21053684.

It is an arithmetic number, because the mean of its divisors is an integer number (1031617825).

Almost surely, 2^10947780740 is an apocalyptic number.

10947780740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10947780740 is an abundant number, since it is smaller than the sum of its proper divisors (13811047060).

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

10947780740 is a wasteful number, since it uses less digits than its factorization.

10947780740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42106871 (or 42106869 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 47.

The spelling of 10947780740 in words is "ten billion, nine hundred forty-seven million, seven hundred eighty thousand, seven hundred forty".