6251787660 has 48 divisors (see below), whose sum is σ = 17508830976. Its totient is φ = 1666779072.

The previous prime is 6251787653. The next prime is 6251787667. The reversal of 6251787660 is 667871526.

It is an interprime number because it is at equal distance from previous prime (6251787653) and next prime (6251787667).

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (6251787667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372367 + ... + 388793.

It is an arithmetic number, because the mean of its divisors is an integer number (364767312).

Almost surely, 2^6251787660 is an apocalyptic number.

6251787660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6251787660 is an abundant number, since it is smaller than the sum of its proper divisors (11257043316).

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

6251787660 is a wasteful number, since it uses less digits than its factorization.

6251787660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22782 (or 22780 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 48.

The square root of 6251787660 is about 79068.2468504266. The cubic root of 6251787660 is about 1842.1913537988.

The spelling of 6251787660 in words is "six billion, two hundred fifty-one million, seven hundred eighty-seven thousand, six hundred sixty".