42239729654 has 16 divisors (see below), whose sum is σ = 66737964480. Its totient is φ = 19995196680.

The previous prime is 42239729617. The next prime is 42239729681. The reversal of 42239729654 is 45692793224.

It is a super-2 number, since 2×42239729654² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42239729596 and 42239729605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304844 + ... + 421199.

It is an arithmetic number, because the mean of its divisors is an integer number (4171122780).

Almost surely, 2^42239729654 is an apocalyptic number.

42239729654 is a deficient number, since it is larger than the sum of its proper divisors (24498234826).

42239729654 is a wasteful number, since it uses less digits than its factorization.

42239729654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727595.

The product of its digits is 6531840, while the sum is 53.

The spelling of 42239729654 in words is "forty-two billion, two hundred thirty-nine million, seven hundred twenty-nine thousand, six hundred fifty-four".