87860861351 has 4 divisors (see below), whose sum is σ = 87873350400. Its totient is φ = 87848372304.

The previous prime is 87860861197. The next prime is 87860861357. The reversal of 87860861351 is 15316806878.

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-87860861351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87860861293 and 87860861302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87860861357) 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, 6233966 + ... + 6248043.

It is an arithmetic number, because the mean of its divisors is an integer number (21968337600).

Almost surely, 2^87860861351 is an apocalyptic number.

87860861351 is a deficient number, since it is larger than the sum of its proper divisors (12489049).

87860861351 is a wasteful number, since it uses less digits than its factorization.

87860861351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12489048.

The product of its (nonzero) digits is 1935360, while the sum is 53.

The spelling of 87860861351 in words is "eighty-seven billion, eight hundred sixty million, eight hundred sixty-one thousand, three hundred fifty-one".