87474038051 has 4 divisors (see below), whose sum is σ = 87542218632. Its totient is φ = 87405857472.

The previous prime is 87474038023. The next prime is 87474038063. The reversal of 87474038051 is 15083047478.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87474038051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87474037987 and 87474038005.

It is not an unprimeable number, because it can be changed into a prime (87474038011) 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, 34088366 + ... + 34090931.

It is an arithmetic number, because the mean of its divisors is an integer number (21885554658).

Almost surely, 2^87474038051 is an apocalyptic number.

87474038051 is a deficient number, since it is larger than the sum of its proper divisors (68180581).

87474038051 is a wasteful number, since it uses less digits than its factorization.

87474038051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68180580.

The product of its (nonzero) digits is 752640, while the sum is 47.

The spelling of 87474038051 in words is "eighty-seven billion, four hundred seventy-four million, thirty-eight thousand, fifty-one".