780534740051 has 24 divisors (see below), whose sum is σ = 883953090720. Its totient is φ = 688365941120.

The previous prime is 780534740047. The next prime is 780534740101. The reversal of 780534740051 is 150047435087.

It is not a de Polignac number, because 780534740051 - 2² = 780534740047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 780534739984 and 780534740011.

It is not an unprimeable number, because it can be changed into a prime (780534746051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113015 + ... + 1254528.

It is an arithmetic number, because the mean of its divisors is an integer number (36831378780).

Almost surely, 2^780534740051 is an apocalyptic number.

780534740051 is a deficient number, since it is larger than the sum of its proper divisors (103418350669).

780534740051 is a wasteful number, since it uses less digits than its factorization.

780534740051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367707 (or 1367696 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 44.

The spelling of 780534740051 in words is "seven hundred eighty billion, five hundred thirty-four million, seven hundred forty thousand, fifty-one".