87803977070845 has 24 divisors (see below), whose sum is σ = 122567652555264. Its totient is φ = 60208211409696.

The previous prime is 87803977070837. The next prime is 87803977070867. The reversal of 87803977070845 is 54807077930878.

It is not a de Polignac number, because 87803977070845 - 2³ = 87803977070837 is a prime.

It is a super-2 number, since 2×87803977070845² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85864752 + ... + 86881318.

It is an arithmetic number, because the mean of its divisors is an integer number (5106985523136).

Almost surely, 2^{87803977070845} is an apocalyptic number.

It is an amenable number.

87803977070845 is a deficient number, since it is larger than the sum of its proper divisors (34763675484419).

87803977070845 is a wasteful number, since it uses less digits than its factorization.

87803977070845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369129 (or 1369122 counting only the distinct ones).

The product of its (nonzero) digits is 663828480, while the sum is 73.

The spelling of 87803977070845 in words is "eighty-seven trillion, eight hundred three billion, nine hundred seventy-seven million, seventy thousand, eight hundred forty-five".