761225878558 has 4 divisors (see below), whose sum is σ = 1141838817840. Its totient is φ = 380612939278.

The previous prime is 761225878549. The next prime is 761225878571. The reversal of 761225878558 is 855878522167.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 855878522167 = 67 ⋅12774306301.

It is a self number, because there is not a number n which added to its sum of digits gives 761225878558.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 190306469638 + ... + 190306469641.

It is an arithmetic number, because the mean of its divisors is an integer number (285459704460).

Almost surely, 2^761225878558 is an apocalyptic number.

761225878558 is a deficient number, since it is larger than the sum of its proper divisors (380612939282).

761225878558 is a wasteful number, since it uses less digits than its factorization.

761225878558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380612939281.

The product of its digits is 75264000, while the sum is 64.

The spelling of 761225878558 in words is "seven hundred sixty-one billion, two hundred twenty-five million, eight hundred seventy-eight thousand, five hundred fifty-eight".