72430402144 has 12 divisors (see below), whose sum is σ = 142597354284. Its totient is φ = 36215201056.

The previous prime is 72430402067. The next prime is 72430402171. The reversal of 72430402144 is 44120403427.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1131725002 + ... + 1131725065.

It is an arithmetic number, because the mean of its divisors is an integer number (11883112857).

Almost surely, 2^72430402144 is an apocalyptic number.

It is an amenable number.

72430402144 is a deficient number, since it is larger than the sum of its proper divisors (70166952140).

72430402144 is a wasteful number, since it uses less digits than its factorization.

72430402144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2263450077 (or 2263450069 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 31.

The spelling of 72430402144 in words is "seventy-two billion, four hundred thirty million, four hundred two thousand, one hundred forty-four".