87077674381 has 4 divisors (see below), whose sum is σ = 88126803072. Its totient is φ = 86028545692.

The previous prime is 87077674379. The next prime is 87077674393. The reversal of 87077674381 is 18347677078.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87077674381 - 2¹ = 87077674379 is a prime.

It is a super-2 number, since 2×87077674381² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87077674361) 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, 524564221 + ... + 524564386.

It is an arithmetic number, because the mean of its divisors is an integer number (22031700768).

Almost surely, 2^87077674381 is an apocalyptic number.

It is an amenable number.

87077674381 is a deficient number, since it is larger than the sum of its proper divisors (1049128691).

87077674381 is a wasteful number, since it uses less digits than its factorization.

87077674381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049128690.

The product of its (nonzero) digits is 11063808, while the sum is 58.

The spelling of 87077674381 in words is "eighty-seven billion, seventy-seven million, six hundred seventy-four thousand, three hundred eighty-one".