671507162877 has 4 divisors (see below), whose sum is σ = 895342883840. Its totient is φ = 447671441916.

The previous prime is 671507162863. The next prime is 671507162881. The reversal of 671507162877 is 778261705176.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 671507162877 - 2⁶ = 671507162813 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 (671507162897) 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, 111917860477 + ... + 111917860482.

It is an arithmetic number, because the mean of its divisors is an integer number (223835720960).

Almost surely, 2^671507162877 is an apocalyptic number.

It is an amenable number.

671507162877 is a deficient number, since it is larger than the sum of its proper divisors (223835720963).

671507162877 is a wasteful number, since it uses less digits than its factorization.

671507162877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223835720962.

The product of its (nonzero) digits is 6914880, while the sum is 57.

The spelling of 671507162877 in words is "six hundred seventy-one billion, five hundred seven million, one hundred sixty-two thousand, eight hundred seventy-seven".