772720463571 has 12 divisors (see below), whose sum is σ = 1198505209032. Its totient is φ = 441554550528.

The previous prime is 772720463533. The next prime is 772720463579. The reversal of 772720463571 is 175364027277.

It is a happy number.

It is not a de Polignac number, because 772720463571 - 2⁷ = 772720463443 is a prime.

It is a super-2 number, since 2×772720463571² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (772720463579) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2628300750 + ... + 2628301043.

It is an arithmetic number, because the mean of its divisors is an integer number (99875434086).

Almost surely, 2^772720463571 is an apocalyptic number.

772720463571 is a deficient number, since it is larger than the sum of its proper divisors (425784745461).

772720463571 is a wasteful number, since it uses less digits than its factorization.

772720463571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5256601810 (or 5256601803 counting only the distinct ones).

The product of its (nonzero) digits is 3457440, while the sum is 51.

The spelling of 772720463571 in words is "seven hundred seventy-two billion, seven hundred twenty million, four hundred sixty-three thousand, five hundred seventy-one".