76557090369 has 16 divisors (see below), whose sum is σ = 108306270720. Its totient is φ = 47935522560.

The previous prime is 76557090367. The next prime is 76557090373. The reversal of 76557090369 is 96309075567.

It is a happy number.

It is not a de Polignac number, because 76557090369 - 2¹ = 76557090367 is a prime.

It is a super-2 number, since 2×76557090369² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76557090367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1542502 + ... + 1591359.

It is an arithmetic number, because the mean of its divisors is an integer number (6769141920).

Almost surely, 2^76557090369 is an apocalyptic number.

It is an amenable number.

76557090369 is a deficient number, since it is larger than the sum of its proper divisors (31749180351).

76557090369 is a wasteful number, since it uses less digits than its factorization.

76557090369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3134360.

The product of its (nonzero) digits is 10716300, while the sum is 57.

The spelling of 76557090369 in words is "seventy-six billion, five hundred fifty-seven million, ninety thousand, three hundred sixty-nine".