18761275080634 has 4 divisors (see below), whose sum is σ = 28141912620954. Its totient is φ = 9380637540316.

The previous prime is 18761275080601. The next prime is 18761275080637. The reversal of 18761275080634 is 43608057216781.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18409703166409 + 351571914225 = 4290653^2 + 592935^2 .

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (18761275080637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4690318770157 + ... + 4690318770160.

Almost surely, 2^{18761275080634} is an apocalyptic number.

18761275080634 is a deficient number, since it is larger than the sum of its proper divisors (9380637540320).

18761275080634 is an equidigital number, since it uses as much as digits as its factorization.

18761275080634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9380637540319.

The product of its (nonzero) digits is 13547520, while the sum is 58.

The spelling of 18761275080634 in words is "eighteen trillion, seven hundred sixty-one billion, two hundred seventy-five million, eighty thousand, six hundred thirty-four".