2547342864 has 80 divisors (see below), whose sum is σ = 7976543040. Its totient is φ = 771920640.

The previous prime is 2547342839. The next prime is 2547342871. The reversal of 2547342864 is 4682437452.

It is a happy number.

2547342864 is a `hidden beast` number, since 2 + 547 + 3 + 42 + 8 + 64 = 666.

2547342864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263277 + ... + 272780.

It is an arithmetic number, because the mean of its divisors is an integer number (99706788).

Almost surely, 2^2547342864 is an apocalyptic number.

2547342864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2547342864 is an abundant number, since it is smaller than the sum of its proper divisors (5429200176).

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

2547342864 is a wasteful number, since it uses less digits than its factorization.

2547342864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536085 (or 536073 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 45.

The square root of 2547342864 is about 50471.2082676847. The cubic root of 2547342864 is about 1365.7225108692.

The spelling of 2547342864 in words is "two billion, five hundred forty-seven million, three hundred forty-two thousand, eight hundred sixty-four".