749138867659 has 32 divisors (see below), whose sum is σ = 944641474560. Its totient is φ = 578185171200.

The previous prime is 749138867657. The next prime is 749138867713. The reversal of 749138867659 is 956768831947.

It is not a de Polignac number, because 749138867659 - 2¹ = 749138867657 is a prime.

It is a super-2 number, since 2×749138867659² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 749138867591 and 749138867600.

It is not an unprimeable number, because it can be changed into a prime (749138867657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42968674 + ... + 42986104.

It is an arithmetic number, because the mean of its divisors is an integer number (29520046080).

Almost surely, 2^749138867659 is an apocalyptic number.

749138867659 is a deficient number, since it is larger than the sum of its proper divisors (195502606901).

749138867659 is a wasteful number, since it uses less digits than its factorization.

749138867659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29011.

The product of its digits is 548674560, while the sum is 73.

The spelling of 749138867659 in words is "seven hundred forty-nine billion, one hundred thirty-eight million, eight hundred sixty-seven thousand, six hundred fifty-nine".