6251346540 has 72 divisors (see below), whose sum is σ = 19574126208. Its totient is φ = 1613249280.

The previous prime is 6251346499. The next prime is 6251346553. The reversal of 6251346540 is 456431526.

6251346540 is a `hidden beast` number, since 62 + 5 + 13 + 46 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 6251346495 and 6251346504.

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, 554577 + ... + 565736.

It is an arithmetic number, because the mean of its divisors is an integer number (271862864).

Almost surely, 2^6251346540 is an apocalyptic number.

6251346540 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6251346540 is an abundant number, since it is smaller than the sum of its proper divisors (13322779668).

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

6251346540 is a wasteful number, since it uses less digits than its factorization.

6251346540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120359 (or 1120354 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 6251346540 is about 79065.4573122802. The cubic root of 6251346540 is about 1842.1480250419.

The spelling of 6251346540 in words is "six billion, two hundred fifty-one million, three hundred forty-six thousand, five hundred forty".