87413493551 has 4 divisors (see below), whose sum is σ = 88846501704. Its totient is φ = 85980485400.

The previous prime is 87413493533. The next prime is 87413493569. The reversal of 87413493551 is 15539431478.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (87413493533) and next prime (87413493569).

It is a cyclic number.

It is not a de Polignac number, because 87413493551 - 2²² = 87409299247 is a prime.

It is a super-2 number, since 2×87413493551² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87413493551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87413493851) 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, 716503985 + ... + 716504106.

It is an arithmetic number, because the mean of its divisors is an integer number (22211625426).

Almost surely, 2^87413493551 is an apocalyptic number.

87413493551 is a deficient number, since it is larger than the sum of its proper divisors (1433008153).

87413493551 is a wasteful number, since it uses less digits than its factorization.

87413493551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433008152.

The product of its digits is 1814400, while the sum is 50.

The spelling of 87413493551 in words is "eighty-seven billion, four hundred thirteen million, four hundred ninety-three thousand, five hundred fifty-one".