2780625796 has 12 divisors (see below), whose sum is σ = 5240410252. Its totient is φ = 1283365728.

The previous prime is 2780625773. The next prime is 2780625803. The reversal of 2780625796 is 6975260872.

It can be written as a sum of positive squares in 2 ways, for example, as 516198400 + 2264427396 = 22720^2 + 47586^2 .

It is a Harshad number since it is a multiple of its sum of digits (52), and also a Moran number because the ratio is a prime number: 53473573 = 2780625796 / (2 + 7 + 8 + 0 + 6 + 2 + 5 + 7 + 9 + 6).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26736735 + ... + 26736838.

Almost surely, 2^2780625796 is an apocalyptic number.

2780625796 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2780625796 is a deficient number, since it is larger than the sum of its proper divisors (2459784456).

2780625796 is a wasteful number, since it uses less digits than its factorization.

2780625796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53473590 (or 53473588 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 52.

The square root of 2780625796 is about 52731.6394207500. The cubic root of 2780625796 is about 1406.2013670595.

The spelling of 2780625796 in words is "two billion, seven hundred eighty million, six hundred twenty-five thousand, seven hundred ninety-six".