765411021948 has 24 divisors (see below), whose sum is σ = 1788694075728. Its totient is φ = 254746289536.

The previous prime is 765411021943. The next prime is 765411021961. The reversal of 765411021948 is 849120114567.

It is a junction number, because it is equal to n+sod(n) for n = 765411021897 and 765411021906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (765411021943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48831561 + ... + 48847232.

It is an arithmetic number, because the mean of its divisors is an integer number (74528919822).

Almost surely, 2^765411021948 is an apocalyptic number.

It is an amenable number.

765411021948 is an abundant number, since it is smaller than the sum of its proper divisors (1023283053780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

765411021948 is a wasteful number, since it uses less digits than its factorization.

765411021948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97679453 (or 97679451 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The spelling of 765411021948 in words is "seven hundred sixty-five billion, four hundred eleven million, twenty-one thousand, nine hundred forty-eight".