6157347840 has 792 divisors, whose sum is σ = 25992347472. Its totient is φ = 1393459200.

The previous prime is 6157347821. The next prime is 6157347851. The reversal of 6157347840 is 487437516.

6157347840 is a `hidden beast` number, since 6 + 1 + 573 + 4 + 78 + 4 + 0 = 666.

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 71 ways as a sum of consecutive naturals, for example, 60963790 + ... + 60963890.

Almost surely, 2^6157347840 is an apocalyptic number.

6157347840 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6157347840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12996173736).

6157347840 is an abundant number, since it is smaller than the sum of its proper divisors (19834999632).

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

6157347840 is a wasteful number, since it uses less digits than its factorization.

6157347840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The square root of 6157347840 is about 78468.7698387072. The cubic root of 6157347840 is about 1832.8681709858.

The spelling of 6157347840 in words is "six billion, one hundred fifty-seven million, three hundred forty-seven thousand, eight hundred forty".