769678557048 has 160 divisors (see below), whose sum is σ = 2196266886000. Its totient is φ = 251760683520.

The previous prime is 769678556879. The next prime is 769678557049. The reversal of 769678557048 is 840755876967.

769678557048 is a `hidden beast` number, since 7 + 6 + 9 + 6 + 7 + 8 + 5 + 570 + 48 = 666.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (769678557049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 21736318 + ... + 21771698.

Almost surely, 2^769678557048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 769678557048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1098133443000).

769678557048 is an abundant number, since it is smaller than the sum of its proper divisors (1426588328952).

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

769678557048 is a wasteful number, since it uses less digits than its factorization.

769678557048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36027 (or 36014 counting only the distinct ones).

The product of its (nonzero) digits is 711244800, while the sum is 72.

The spelling of 769678557048 in words is "seven hundred sixty-nine billion, six hundred seventy-eight million, five hundred fifty-seven thousand, forty-eight".