87508101377 has 4 divisors (see below), whose sum is σ = 89873185236. Its totient is φ = 85143017520.

The previous prime is 87508101371. The next prime is 87508101389. The reversal of 87508101377 is 77310180578.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77310180578 = 2 ⋅38655090289.

It can be written as a sum of positive squares in 2 ways, for example, as 39601398001 + 47906703376 = 199001^2 + 218876^2 .

It is a cyclic number.

It is not a de Polignac number, because 87508101377 - 2¹⁰ = 87508100353 is a prime.

It is a super-2 number, since 2×87508101377² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87508101371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1182541874 + ... + 1182541947.

It is an arithmetic number, because the mean of its divisors is an integer number (22468296309).

Almost surely, 2^87508101377 is an apocalyptic number.

It is an amenable number.

87508101377 is a deficient number, since it is larger than the sum of its proper divisors (2365083859).

87508101377 is a wasteful number, since it uses less digits than its factorization.

87508101377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2365083858.

The product of its (nonzero) digits is 329280, while the sum is 47.

The spelling of 87508101377 in words is "eighty-seven billion, five hundred eight million, one hundred one thousand, three hundred seventy-seven".