780070779045 has 24 divisors (see below), whose sum is σ = 1402201303776. Its totient is φ = 416037748176.

The previous prime is 780070779031. The next prime is 780070779053. The reversal of 780070779045 is 540977070087.

It is not a de Polignac number, because 780070779045 - 2⁸ = 780070778789 is a prime.

It is a super-2 number, since 2×780070779045² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 780070778982 and 780070779000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 321015567 + ... + 321017996.

It is an arithmetic number, because the mean of its divisors is an integer number (58425054324).

Almost surely, 2^780070779045 is an apocalyptic number.

It is an amenable number.

780070779045 is a deficient number, since it is larger than the sum of its proper divisors (622130524731).

780070779045 is an equidigital number, since it uses as much as digits as its factorization.

780070779045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642033583 (or 642033571 counting only the distinct ones).

The product of its (nonzero) digits is 3457440, while the sum is 54.

The spelling of 780070779045 in words is "seven hundred eighty billion, seventy million, seven hundred seventy-nine thousand, forty-five".