749946987861 has 8 divisors (see below), whose sum is σ = 1002653921664. Its totient is φ = 498602356320.

The previous prime is 749946987787. The next prime is 749946987893. The reversal of 749946987861 is 168789649947.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 749946987861 - 2²³ = 749938599253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749946987661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340574280 + ... + 340576481.

It is an arithmetic number, because the mean of its divisors is an integer number (125331740208).

Almost surely, 2^749946987861 is an apocalyptic number.

It is an amenable number.

749946987861 is a deficient number, since it is larger than the sum of its proper divisors (252706933803).

749946987861 is a wasteful number, since it uses less digits than its factorization.

749946987861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681151131.

The product of its digits is 1316818944, while the sum is 78.

The spelling of 749946987861 in words is "seven hundred forty-nine billion, nine hundred forty-six million, nine hundred eighty-seven thousand, eight hundred sixty-one".