749403765873 has 24 divisors (see below), whose sum is σ = 1302222084800. Its totient is φ = 405692263584.

The previous prime is 749403765841. The next prime is 749403765881. The reversal of 749403765873 is 378567304947.

749403765873 is a `hidden beast` number, since 7 + 4 + 9 + 40 + 3 + 7 + 6 + 587 + 3 = 666.

It is not a de Polignac number, because 749403765873 - 2⁵ = 749403765841 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 749403765873.

It is not an unprimeable number, because it can be changed into a prime (749403765883) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 313032958 + ... + 313035351.

Almost surely, 2^749403765873 is an apocalyptic number.

It is an amenable number.

749403765873 is a deficient number, since it is larger than the sum of its proper divisors (552818318927).

749403765873 is a wasteful number, since it uses less digits than its factorization.

749403765873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626068341 (or 626068338 counting only the distinct ones).

The product of its (nonzero) digits is 106686720, while the sum is 63.

The spelling of 749403765873 in words is "seven hundred forty-nine billion, four hundred three million, seven hundred sixty-five thousand, eight hundred seventy-three".