70776621099 has 32 divisors (see below), whose sum is σ = 110391744000. Its totient is φ = 44693392032.

The previous prime is 70776621059. The next prime is 70776621103. The reversal of 70776621099 is 99012667707.

It is a happy number.

70776621099 is a `hidden beast` number, since 7 + 0 + 7 + 7 + 6 + 621 + 0 + 9 + 9 = 666.

It is not a de Polignac number, because 70776621099 - 2³⁵ = 36416882731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70776621029) 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 31 ways as a sum of consecutive naturals, for example, 5589994 + ... + 5602640.

It is an arithmetic number, because the mean of its divisors is an integer number (3449742000).

Almost surely, 2^70776621099 is an apocalyptic number.

70776621099 is a deficient number, since it is larger than the sum of its proper divisors (39615122901).

70776621099 is a wasteful number, since it uses less digits than its factorization.

70776621099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23584 (or 23578 counting only the distinct ones).

The product of its (nonzero) digits is 2000376, while the sum is 54.

The spelling of 70776621099 in words is "seventy billion, seven hundred seventy-six million, six hundred twenty-one thousand, ninety-nine".