747033978989 has 4 divisors (see below), whose sum is σ = 747036225120. Its totient is φ = 747031732860.

The previous prime is 747033978947. The next prime is 747033978997. The reversal of 747033978989 is 989879330747.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 747033978989 - 2¹² = 747033974893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747033918989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 514127 + ... + 1326044.

It is an arithmetic number, because the mean of its divisors is an integer number (186759056280).

Almost surely, 2^747033978989 is an apocalyptic number.

It is an amenable number.

747033978989 is a deficient number, since it is larger than the sum of its proper divisors (2246131).

747033978989 is a wasteful number, since it uses less digits than its factorization.

747033978989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2246130.

The product of its (nonzero) digits is 576108288, while the sum is 74.

The spelling of 747033978989 in words is "seven hundred forty-seven billion, thirty-three million, nine hundred seventy-eight thousand, nine hundred eighty-nine".