7642023143 has 4 divisors (see below), whose sum is σ = 7644229560. Its totient is φ = 7639816728.

The previous prime is 7642023133. The next prime is 7642023157. The reversal of 7642023143 is 3413202467.

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

It is a cyclic number.

It is not a de Polignac number, because 7642023143 - 2⁴ = 7642023127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7642023133) 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, 1098005 + ... + 1104942.

It is an arithmetic number, because the mean of its divisors is an integer number (1911057390).

Almost surely, 2^7642023143 is an apocalyptic number.

7642023143 is a deficient number, since it is larger than the sum of its proper divisors (2206417).

7642023143 is a wasteful number, since it uses less digits than its factorization.

7642023143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2206416.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 7642023143 is about 87418.6658729130. The cubic root of 7642023143 is about 1969.7122363051.

The spelling of 7642023143 in words is "seven billion, six hundred forty-two million, twenty-three thousand, one hundred forty-three".