28157664761862 has 96 divisors (see below), whose sum is σ = 63278980365312. Its totient is φ = 8333949735936.

The previous prime is 28157664761827. The next prime is 28157664761867. The reversal of 28157664761862 is 26816746675182.

It is a hoax number, since the sum of its digits (69) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28157664761867) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1924398 + ... + 7747169.

It is an arithmetic number, because the mean of its divisors is an integer number (659156045472).

Almost surely, 2^{28157664761862} is an apocalyptic number.

28157664761862 is an abundant number, since it is smaller than the sum of its proper divisors (35121315603450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28157664761862 is a wasteful number, since it uses less digits than its factorization.

28157664761862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9671702 (or 9671685 counting only the distinct ones).

The product of its digits is 325140480, while the sum is 69.

The spelling of 28157664761862 in words is "twenty-eight trillion, one hundred fifty-seven billion, six hundred sixty-four million, seven hundred sixty-one thousand, eight hundred sixty-two".