2547293994 has 80 divisors (see below), whose sum is σ = 6733748736. Its totient is φ = 704311200.

The previous prime is 2547293993. The next prime is 2547294031. The reversal of 2547293994 is 4993927452.

2547293994 is a `hidden beast` number, since 2 + 547 + 2 + 9 + 3 + 9 + 94 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 2547293994.

It is not an unprimeable number, because it can be changed into a prime (2547293993) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1077 + ... + 71384.

Almost surely, 2^2547293994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2547293994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3366874368).

2547293994 is an abundant number, since it is smaller than the sum of its proper divisors (4186454742).

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

2547293994 is a wasteful number, since it uses less digits than its factorization.

2547293994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72513 (or 72504 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 54.

The square root of 2547293994 is about 50470.7241279536. The cubic root of 2547293994 is about 1365.7137771560.

The spelling of 2547293994 in words is "two billion, five hundred forty-seven million, two hundred ninety-three thousand, nine hundred ninety-four".