2547861740 has 48 divisors (see below), whose sum is σ = 5728968000. Its totient is φ = 948406272.

The previous prime is 2547861733. The next prime is 2547861749. The reversal of 2547861740 is 471687452.

It is a junction number, because it is equal to n+sod(n) for n = 2547861691 and 2547861700.

It is not an unprimeable number, because it can be changed into a prime (2547861749) 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, 11840 + ... + 72359.

It is an arithmetic number, because the mean of its divisors is an integer number (119353500).

Almost surely, 2^2547861740 is an apocalyptic number.

2547861740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2547861740 is an abundant number, since it is smaller than the sum of its proper divisors (3181106260).

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

2547861740 is a wasteful number, since it uses less digits than its factorization.

2547861740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84314 (or 84312 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 44.

The square root of 2547861740 is about 50476.3483227541. The cubic root of 2547861740 is about 1365.8152339617.

The spelling of 2547861740 in words is "two billion, five hundred forty-seven million, eight hundred sixty-one thousand, seven hundred forty".