769257085542 has 64 divisors (see below), whose sum is σ = 1737752175360. Its totient is φ = 224875817600.

The previous prime is 769257085501. The next prime is 769257085567. The reversal of 769257085542 is 245580752967.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2053192 + ... + 2398772.

It is an arithmetic number, because the mean of its divisors is an integer number (27152377740).

Almost surely, 2^769257085542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 769257085542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (868876087680).

769257085542 is an abundant number, since it is smaller than the sum of its proper divisors (968495089818).

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

769257085542 is a wasteful number, since it uses less digits than its factorization.

769257085542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346789.

The product of its (nonzero) digits is 42336000, while the sum is 60.

The spelling of 769257085542 in words is "seven hundred sixty-nine billion, two hundred fifty-seven million, eighty-five thousand, five hundred forty-two".