770746405551 has 8 divisors (see below), whose sum is σ = 1029704941440. Its totient is φ = 512809403352.

The previous prime is 770746405549. The next prime is 770746405591. The reversal of 770746405551 is 155504647077.

It is a happy number.

770746405551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 770746405551 - 2¹ = 770746405549 is a prime.

It is a super-2 number, since 2×770746405551² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 770746405494 and 770746405503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (770746405591) 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, 255381661 + ... + 255384678.

It is an arithmetic number, because the mean of its divisors is an integer number (128713117680).

Almost surely, 2^770746405551 is an apocalyptic number.

770746405551 is a deficient number, since it is larger than the sum of its proper divisors (258958535889).

770746405551 is a wasteful number, since it uses less digits than its factorization.

770746405551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510766845.

The product of its (nonzero) digits is 4116000, while the sum is 51.

The spelling of 770746405551 in words is "seven hundred seventy billion, seven hundred forty-six million, four hundred five thousand, five hundred fifty-one".