42137929725 has 48 divisors (see below), whose sum is σ = 74061122880. Its totient is φ = 21079872000.

The previous prime is 42137929721. The next prime is 42137929739. The reversal of 42137929725 is 52792973124.

It is not a de Polignac number, because 42137929725 - 2² = 42137929721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42137929721) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2464 + ... + 290313.

It is an arithmetic number, because the mean of its divisors is an integer number (1542940060).

Almost surely, 2^42137929725 is an apocalyptic number.

It is an amenable number.

42137929725 is a deficient number, since it is larger than the sum of its proper divisors (31923193155).

42137929725 is a wasteful number, since it uses less digits than its factorization.

42137929725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292910 (or 292905 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 51.

The spelling of 42137929725 in words is "forty-two billion, one hundred thirty-seven million, nine hundred twenty-nine thousand, seven hundred twenty-five".