42515503791375 has 32 divisors (see below), whose sum is σ = 73185308614080. Its totient is φ = 21893041027200.

The previous prime is 42515503791361. The next prime is 42515503791401. The reversal of 42515503791375 is 57319730551524.

It is a happy number.

It is not a de Polignac number, because 42515503791375 - 2⁷ = 42515503791247 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1954724932 + ... + 1954746681.

It is an arithmetic number, because the mean of its divisors is an integer number (2287040894190).

Almost surely, 2^{42515503791375} is an apocalyptic number.

42515503791375 is a deficient number, since it is larger than the sum of its proper divisors (30669804822705).

42515503791375 is a wasteful number, since it uses less digits than its factorization.

42515503791375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3909471660 (or 3909471650 counting only the distinct ones).

The product of its (nonzero) digits is 19845000, while the sum is 57.

The spelling of 42515503791375 in words is "forty-two trillion, five hundred fifteen billion, five hundred three million, seven hundred ninety-one thousand, three hundred seventy-five".