761477754673 has 4 divisors (see below), whose sum is σ = 761903400820. Its totient is φ = 761052108528.

The previous prime is 761477754671. The next prime is 761477754677. The reversal of 761477754673 is 376457774167.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 376457774167 = 17 ⋅22144574951.

It can be written as a sum of positive squares in 2 ways, for example, as 662298109489 + 99179645184 = 813817^2 + 314928^2 .

It is a cyclic number.

It is not a de Polignac number, because 761477754673 - 2¹ = 761477754671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (761477754671) 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, 212820390 + ... + 212823967.

It is an arithmetic number, because the mean of its divisors is an integer number (190475850205).

Almost surely, 2^761477754673 is an apocalyptic number.

It is an amenable number.

761477754673 is a deficient number, since it is larger than the sum of its proper divisors (425646147).

761477754673 is a wasteful number, since it uses less digits than its factorization.

761477754673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425646146.

The product of its digits is 145212480, while the sum is 64.

The spelling of 761477754673 in words is "seven hundred sixty-one billion, four hundred seventy-seven million, seven hundred fifty-four thousand, six hundred seventy-three".