2761991672 has 32 divisors (see below), whose sum is σ = 5742154800. Its totient is φ = 1234867200.

The previous prime is 2761991669. The next prime is 2761991689.

2761991672 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 2761991672.

It is a congruent number.

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, 251897 + ... + 262632.

Almost surely, 2^2761991672 is an apocalyptic number.

2761991672 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2761991672 is an abundant number, since it is smaller than the sum of its proper divisors (2980163128).

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

2761991672 is a wasteful number, since it uses less digits than its factorization.

2761991672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514607 (or 514603 counting only the distinct ones).

The product of its digits is 571536, while the sum is 50.

The square root of 2761991672 is about 52554.6541421404. The cubic root of 2761991672 is about 1403.0531449700.

The spelling of 2761991672 in words is "two billion, seven hundred sixty-one million, nine hundred ninety-one thousand, six hundred seventy-two".