870677748435551 has 16 divisors (see below), whose sum is σ = 1010510533478400. Its totient is φ = 734761048589568.

The previous prime is 870677748435511. The next prime is 870677748435571. The reversal of 870677748435551 is 155534847776078.

It is not a de Polignac number, because 870677748435551 - 2⁶ = 870677748435487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870677748435511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2229921611 + ... + 2230312028.

It is an arithmetic number, because the mean of its divisors is an integer number (63156908342400).

Almost surely, 2^{870677748435551} is an apocalyptic number.

870677748435551 is a deficient number, since it is larger than the sum of its proper divisors (139832785042849).

870677748435551 is a wasteful number, since it uses less digits than its factorization.

870677748435551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4460234078.

The product of its (nonzero) digits is 5531904000, while the sum is 77.

The spelling of 870677748435551 in words is "eight hundred seventy trillion, six hundred seventy-seven billion, seven hundred forty-eight million, four hundred thirty-five thousand, five hundred fifty-one".