69691916945 has 16 divisors (see below), whose sum is σ = 96923651328. Its totient is φ = 47115660480.

The previous prime is 69691916941. The next prime is 69691916953. The reversal of 69691916945 is 54961919696.

It is not a de Polignac number, because 69691916945 - 2² = 69691916941 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (69691916941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14020034 + ... + 14025003.

It is an arithmetic number, because the mean of its divisors is an integer number (6057728208).

Almost surely, 2^69691916945 is an apocalyptic number.

It is an amenable number.

69691916945 is a deficient number, since it is larger than the sum of its proper divisors (27231734383).

69691916945 is a wasteful number, since it uses less digits than its factorization.

69691916945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28045120.

The product of its digits is 28343520, while the sum is 65.

The spelling of 69691916945 in words is "sixty-nine billion, six hundred ninety-one million, nine hundred sixteen thousand, nine hundred forty-five".