18770282171377 has 12 divisors (see below), whose sum is σ = 20642098473360. Its totient is φ = 17055373495160.

The previous prime is 18770282171369. The next prime is 18770282171489. The reversal of 18770282171377 is 77317128207781.

It is not a de Polignac number, because 18770282171377 - 2³ = 18770282171369 is a prime.

It is a super-2 number, since 2×18770282171377² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18770282171177) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38481127 + ... + 38965852.

It is an arithmetic number, because the mean of its divisors is an integer number (1720174872780).

Almost surely, 2^{18770282171377} is an apocalyptic number.

It is an amenable number.

18770282171377 is a deficient number, since it is larger than the sum of its proper divisors (1871816301983).

18770282171377 is a wasteful number, since it uses less digits than its factorization.

18770282171377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77449004 (or 77448993 counting only the distinct ones).

The product of its (nonzero) digits is 12907776, while the sum is 61.

The spelling of 18770282171377 in words is "eighteen trillion, seven hundred seventy billion, two hundred eighty-two million, one hundred seventy-one thousand, three hundred seventy-seven".