2139264776 has 32 divisors (see below), whose sum is σ = 4566024000. Its totient is φ = 930114240.

The previous prime is 2139264773. The next prime is 2139264791. The reversal of 2139264776 is 6774629312.

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 a self number, because there is not a number n which added to its sum of digits gives 2139264776.

It is not an unprimeable number, because it can be changed into a prime (2139264773) 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, 526451 + ... + 530498.

It is an arithmetic number, because the mean of its divisors is an integer number (142688250).

Almost surely, 2^2139264776 is an apocalyptic number.

It is an amenable number.

2139264776 is an abundant number, since it is smaller than the sum of its proper divisors (2426759224).

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

2139264776 is a wasteful number, since it uses less digits than its factorization.

2139264776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056989 (or 1056985 counting only the distinct ones).

The product of its digits is 762048, while the sum is 47.

The square root of 2139264776 is about 46252.1867158732. The cubic root of 2139264776 is about 1288.5111473148.

It can be divided in two parts, 21392 and 64776, that added together give a palindrome (86168).

The spelling of 2139264776 in words is "two billion, one hundred thirty-nine million, two hundred sixty-four thousand, seven hundred seventy-six".