7642512403 has 4 divisors (see below), whose sum is σ = 7659764568. Its totient is φ = 7625260240.

The previous prime is 7642512341. The next prime is 7642512457. The reversal of 7642512403 is 3042152467.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7642512403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7642512103) 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, 8625418 + ... + 8626303.

It is an arithmetic number, because the mean of its divisors is an integer number (1914941142).

Almost surely, 2^7642512403 is an apocalyptic number.

7642512403 is a deficient number, since it is larger than the sum of its proper divisors (17252165).

7642512403 is a wasteful number, since it uses less digits than its factorization.

7642512403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17252164.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 7642512403 is about 87421.4642007328. The cubic root of 7642512403 is about 1969.7542705860.

The spelling of 7642512403 in words is "seven billion, six hundred forty-two million, five hundred twelve thousand, four hundred three".