87691074213069 has 8 divisors (see below), whose sum is σ = 129912702537920. Its totient is φ = 58460716142028.

The previous prime is 87691074213031. The next prime is 87691074213073. The reversal of 87691074213069 is 96031247019678.

87691074213069 is a `hidden beast` number, since 8 + 76 + 9 + 107 + 421 + 30 + 6 + 9 = 666.

It is not a de Polignac number, because 87691074213069 - 2⁸ = 87691074212813 is a prime.

It is a super-2 number, since 2×87691074213069² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87691074212997 and 87691074213015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87691074213089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1623908781697 + ... + 1623908781750.

It is an arithmetic number, because the mean of its divisors is an integer number (16239087817240).

Almost surely, 2^{87691074213069} is an apocalyptic number.

It is an amenable number.

87691074213069 is a deficient number, since it is larger than the sum of its proper divisors (42221628324851).

87691074213069 is a wasteful number, since it uses less digits than its factorization.

87691074213069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3247817563456 (or 3247817563450 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 63.

The spelling of 87691074213069 in words is "eighty-seven trillion, six hundred ninety-one billion, seventy-four million, two hundred thirteen thousand, sixty-nine".