2651994680 has 16 divisors (see below), whose sum is σ = 5966988120. Its totient is φ = 1060797856.

The previous prime is 2651994671. The next prime is 2651994689. The reversal of 2651994680 is 864991562.

It is an interprime number because it is at equal distance from previous prime (2651994671) and next prime (2651994689).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2651994689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33149894 + ... + 33149973.

Almost surely, 2^2651994680 is an apocalyptic number.

2651994680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2651994680 is an abundant number, since it is smaller than the sum of its proper divisors (3314993440).

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

2651994680 is a wasteful number, since it uses less digits than its factorization.

2651994680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66299878 (or 66299874 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 50.

The square root of 2651994680 is about 51497.5211053891. The cubic root of 2651994680 is about 1384.1746232379.

The spelling of 2651994680 in words is "two billion, six hundred fifty-one million, nine hundred ninety-four thousand, six hundred eighty".