71903619040 has 48 divisors (see below), whose sum is σ = 185315240880. Its totient is φ = 26146769920.

The previous prime is 71903619017. The next prime is 71903619077. The reversal of 71903619040 is 4091630917.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 71903618984 and 71903619002.

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, 20425405 + ... + 20428924.

It is an arithmetic number, because the mean of its divisors is an integer number (3860734185).

Almost surely, 2^71903619040 is an apocalyptic number.

It is an amenable number.

71903619040 is an abundant number, since it is smaller than the sum of its proper divisors (113411621840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71903619040 is a wasteful number, since it uses less digits than its factorization.

71903619040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40854355 (or 40854347 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 40.

The spelling of 71903619040 in words is "seventy-one billion, nine hundred three million, six hundred nineteen thousand, forty".