43742826425 has 24 divisors (see below), whose sum is σ = 56292200640. Its totient is φ = 33678747200.

The previous prime is 43742826373. The next prime is 43742826451. The reversal of 43742826425 is 52462824734.

It is a de Polignac number, because none of the positive numbers 2^k-43742826425 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43742826425.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128474 + ... + 322476.

It is an arithmetic number, because the mean of its divisors is an integer number (2345508360).

Almost surely, 2^43742826425 is an apocalyptic number.

It is an amenable number.

43742826425 is a deficient number, since it is larger than the sum of its proper divisors (12549374215).

43742826425 is a wasteful number, since it uses less digits than its factorization.

43742826425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194353 (or 194348 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 47.

The spelling of 43742826425 in words is "forty-three billion, seven hundred forty-two million, eight hundred twenty-six thousand, four hundred twenty-five".