611976766321 has 16 divisors (see below), whose sum is σ = 649058866560. Its totient is φ = 575015811840.

The previous prime is 611976766319. The next prime is 611976766363. The reversal of 611976766321 is 123667679116.

611976766321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 611976766321 - 2¹ = 611976766319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (611976766021) 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, 29157651 + ... + 29178631.

It is an arithmetic number, because the mean of its divisors is an integer number (40566179160).

Almost surely, 2^611976766321 is an apocalyptic number.

It is an amenable number.

611976766321 is a deficient number, since it is larger than the sum of its proper divisors (37082100239).

611976766321 is a wasteful number, since it uses less digits than its factorization.

611976766321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23784.

The product of its digits is 3429216, while the sum is 55.

The spelling of 611976766321 in words is "six hundred eleven billion, nine hundred seventy-six million, seven hundred sixty-six thousand, three hundred twenty-one".