7423967542 has 4 divisors (see below), whose sum is σ = 11135951316. Its totient is φ = 3711983770.

The previous prime is 7423967521. The next prime is 7423967543. The reversal of 7423967542 is 2457693247.

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

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7423967543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1855991884 + ... + 1855991887.

It is an arithmetic number, because the mean of its divisors is an integer number (2783987829).

Almost surely, 2^7423967542 is an apocalyptic number.

7423967542 is a deficient number, since it is larger than the sum of its proper divisors (3711983774).

7423967542 is a wasteful number, since it uses less digits than its factorization.

7423967542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3711983773.

The product of its digits is 2540160, while the sum is 49.

The square root of 7423967542 is about 86162.4485608435. The cubic root of 7423967542 is about 1950.7967414361.

The spelling of 7423967542 in words is "seven billion, four hundred twenty-three million, nine hundred sixty-seven thousand, five hundred forty-two".