775216241764 has 12 divisors (see below), whose sum is σ = 1357625220588. Its totient is φ = 387323321600.

The previous prime is 775216241663. The next prime is 775216241801. The reversal of 775216241764 is 467142612577.

It can be written as a sum of positive squares in 2 ways, for example, as 177081056100 + 598135185664 = 420810^2 + 773392^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71193697 + ... + 71204584.

It is an arithmetic number, because the mean of its divisors is an integer number (113135435049).

Almost surely, 2^775216241764 is an apocalyptic number.

It is an amenable number.

775216241764 is a deficient number, since it is larger than the sum of its proper divisors (582408978824).

775216241764 is a wasteful number, since it uses less digits than its factorization.

775216241764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142399646 (or 142399644 counting only the distinct ones).

The product of its digits is 3951360, while the sum is 52.

The spelling of 775216241764 in words is "seven hundred seventy-five billion, two hundred sixteen million, two hundred forty-one thousand, seven hundred sixty-four".