912777420989 has 8 divisors (see below), whose sum is σ = 1048416278400. Its totient is φ = 778449084336.

The previous prime is 912777420953. The next prime is 912777421009. The reversal of 912777420989 is 989024777219.

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

It is a de Polignac number, because none of the positive numbers 2^k-912777420989 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 (912777420689) 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, 327628694 + ... + 327631479.

It is an arithmetic number, because the mean of its divisors is an integer number (131052034800).

Almost surely, 2^912777420989 is an apocalyptic number.

It is an amenable number.

912777420989 is a deficient number, since it is larger than the sum of its proper divisors (135638857411).

912777420989 is a wasteful number, since it uses less digits than its factorization.

912777420989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655260379.

The product of its (nonzero) digits is 32006016, while the sum is 65.

The spelling of 912777420989 in words is "nine hundred twelve billion, seven hundred seventy-seven million, four hundred twenty thousand, nine hundred eighty-nine".