2634087780 has 72 divisors (see below), whose sum is σ = 8460079992. Its totient is φ = 661103616.

The previous prime is 2634087779. The next prime is 2634087791. The reversal of 2634087780 is 877804362.

It is a happy number.

2634087780 is a `hidden beast` number, since 2 + 634 + 0 + 8 + 7 + 7 + 8 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 123476544 + 2510611236 = 11112^2 + 50106^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 427347 + ... + 433466.

It is an arithmetic number, because the mean of its divisors is an integer number (117501111).

Almost surely, 2^2634087780 is an apocalyptic number.

2634087780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2634087780 is an abundant number, since it is smaller than the sum of its proper divisors (5825992212).

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

2634087780 is a wasteful number, since it uses less digits than its factorization.

2634087780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860845 (or 860840 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 2634087780 is about 51323.3648546157. The cubic root of 2634087780 is about 1381.0521591567.

The spelling of 2634087780 in words is "two billion, six hundred thirty-four million, eighty-seven thousand, seven hundred eighty".