87397833074 has 4 divisors (see below), whose sum is σ = 131096749614. Its totient is φ = 43698916536.

The previous prime is 87397833073. The next prime is 87397833079. The reversal of 87397833074 is 47033879378.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47033879378 = 2 ⋅23516939689.

It can be written as a sum of positive squares in only one way, i.e., 87340936225 + 56896849 = 295535^2 + 7543^2 .

It is not an unprimeable number, because it can be changed into a prime (87397833073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21849458267 + ... + 21849458270.

Almost surely, 2^87397833074 is an apocalyptic number.

87397833074 is a deficient number, since it is larger than the sum of its proper divisors (43698916540).

87397833074 is a wasteful number, since it uses less digits than its factorization.

87397833074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43698916539.

The product of its (nonzero) digits is 21337344, while the sum is 59.

The spelling of 87397833074 in words is "eighty-seven billion, three hundred ninety-seven million, eight hundred thirty-three thousand, seventy-four".