770939997554 has 8 divisors (see below), whose sum is σ = 1156807533420. Its totient is φ = 385337486416.

The previous prime is 770939997547. The next prime is 770939997559. The reversal of 770939997554 is 455799939077.

It can be written as a sum of positive squares in 2 ways, for example, as 757639680625 + 13300316929 = 870425^2 + 115327^2 .

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

It is not an unprimeable number, because it can be changed into a prime (770939997559) 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, 66248909 + ... + 66260544.

Almost surely, 2^770939997554 is an apocalyptic number.

770939997554 is a deficient number, since it is larger than the sum of its proper divisors (385867535866).

770939997554 is a wasteful number, since it uses less digits than its factorization.

770939997554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132512364.

The product of its (nonzero) digits is 675126900, while the sum is 74.

The spelling of 770939997554 in words is "seven hundred seventy billion, nine hundred thirty-nine million, nine hundred ninety-seven thousand, five hundred fifty-four".