3747545493 has 4 divisors (see below), whose sum is σ = 4996727328. Its totient is φ = 2498363660.

The previous prime is 3747545489. The next prime is 3747545507. The reversal of 3747545493 is 3945457473.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3747545493 - 2² = 3747545489 is a prime.

It is a super-2 number, since 2×3747545493² = 28088194444209226098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3747545413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 624590913 + ... + 624590918.

It is an arithmetic number, because the mean of its divisors is an integer number (1249181832).

Almost surely, 2^3747545493 is an apocalyptic number.

It is an amenable number.

3747545493 is a deficient number, since it is larger than the sum of its proper divisors (1249181835).

3747545493 is a wasteful number, since it uses less digits than its factorization.

3747545493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249181834.

The product of its digits is 6350400, while the sum is 51.

The square root of 3747545493 is about 61217.1993233928. The cubic root of 3747545493 is about 1553.2772134868.

The spelling of 3747545493 in words is "three billion, seven hundred forty-seven million, five hundred forty-five thousand, four hundred ninety-three".