76909369121949 has 32 divisors (see below), whose sum is σ = 126451566782464. Its totient is φ = 40490012168640.

The previous prime is 76909369121941. The next prime is 76909369121971. The reversal of 76909369121949 is 94912196390967.

It is not a de Polignac number, because 76909369121949 - 2³ = 76909369121941 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76909369121941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 269187337 + ... + 269472894.

It is an arithmetic number, because the mean of its divisors is an integer number (3951611461952).

Almost surely, 2^{76909369121949} is an apocalyptic number.

It is an amenable number.

76909369121949 is a deficient number, since it is larger than the sum of its proper divisors (49542197660515).

76909369121949 is a wasteful number, since it uses less digits than its factorization.

76909369121949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538660777.

The product of its (nonzero) digits is 357128352, while the sum is 75.

The spelling of 76909369121949 in words is "seventy-six trillion, nine hundred nine billion, three hundred sixty-nine million, one hundred twenty-one thousand, nine hundred forty-nine".