72403657043035 has 16 divisors (see below), whose sum is σ = 88909957509120. Its totient is φ = 56572697835360.

The previous prime is 72403657043023. The next prime is 72403657043051. The reversal of 72403657043035 is 53034075630427.

It is not a de Polignac number, because 72403657043035 - 2¹⁹ = 72403656518747 is a prime.

It is a super-2 number, since 2×72403657043035² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72403657043035.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5639305 + ... + 13289434.

It is an arithmetic number, because the mean of its divisors is an integer number (5556872344320).

Almost surely, 2^{72403657043035} is an apocalyptic number.

72403657043035 is a deficient number, since it is larger than the sum of its proper divisors (16506300466085).

72403657043035 is a wasteful number, since it uses less digits than its factorization.

72403657043035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18946578.

The product of its (nonzero) digits is 6350400, while the sum is 49.

The spelling of 72403657043035 in words is "seventy-two trillion, four hundred three billion, six hundred fifty-seven million, forty-three thousand, thirty-five".