748669889779 has 16 divisors (see below), whose sum is σ = 894270878208. Its totient is φ = 612821385792.

The previous prime is 748669889731. The next prime is 748669889819. The reversal of 748669889779 is 977988966847.

It is not a de Polignac number, because 748669889779 - 2²³ = 748661501171 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 748669889779.

It is not an unprimeable number, because it can be changed into a prime (748669889179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3668997 + ... + 3867670.

It is an arithmetic number, because the mean of its divisors is an integer number (55891929888).

Almost surely, 2^748669889779 is an apocalyptic number.

748669889779 is a deficient number, since it is larger than the sum of its proper divisors (145600988429).

748669889779 is a wasteful number, since it uses less digits than its factorization.

748669889779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7537314.

The product of its digits is 18435465216, while the sum is 88.

The spelling of 748669889779 in words is "seven hundred forty-eight billion, six hundred sixty-nine million, eight hundred eighty-nine thousand, seven hundred seventy-nine".