42098919725 has 12 divisors (see below), whose sum is σ = 53058443700. Its totient is φ = 33127017600.

The previous prime is 42098919719. The next prime is 42098919749. The reversal of 42098919725 is 52791989024.

It can be written as a sum of positive squares in 6 ways, for example, as 20672400841 + 21426518884 = 143779^2 + 146378^2 .

It is not a de Polignac number, because 42098919725 - 2¹² = 42098915629 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13801400 + ... + 13804449.

It is an arithmetic number, because the mean of its divisors is an integer number (4421536975).

Almost surely, 2^42098919725 is an apocalyptic number.

It is an amenable number.

42098919725 is a deficient number, since it is larger than the sum of its proper divisors (10959523975).

42098919725 is a wasteful number, since it uses less digits than its factorization.

42098919725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27605920 (or 27605915 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 56.

The spelling of 42098919725 in words is "forty-two billion, ninety-eight million, nine hundred nineteen thousand, seven hundred twenty-five".