7142473729 has 4 divisors (see below), whose sum is σ = 7144376580. Its totient is φ = 7140570880.

The previous prime is 7142473727. The next prime is 7142473739. The reversal of 7142473729 is 9273742417.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9273742417 = 89 ⋅104199353.

It can be written as a sum of positive squares in 2 ways, for example, as 5580090000 + 1562383729 = 74700^2 + 39527^2 .

It is a cyclic number.

It is not a de Polignac number, because 7142473729 - 2¹ = 7142473727 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7142473727) 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, 945784 + ... + 953305.

It is an arithmetic number, because the mean of its divisors is an integer number (1786094145).

Almost surely, 2^7142473729 is an apocalyptic number.

It is an amenable number.

7142473729 is a deficient number, since it is larger than the sum of its proper divisors (1902851).

7142473729 is a wasteful number, since it uses less digits than its factorization.

7142473729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902850.

The product of its digits is 592704, while the sum is 46.

The square root of 7142473729 is about 84513.1571354425. The cubic root of 7142473729 is about 1925.8223262626.

The spelling of 7142473729 in words is "seven billion, one hundred forty-two million, four hundred seventy-three thousand, seven hundred twenty-nine".