140274774025618 has 4 divisors (see below), whose sum is σ = 210412161038430. Its totient is φ = 70137387012808.

The previous prime is 140274774025543. The next prime is 140274774025619. The reversal of 140274774025618 is 816520477472041.

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., 93490856650489 + 46783917375129 = 9669067^2 + 6839877^2 .

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 (140274774025619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35068693506403 + ... + 35068693506406.

Almost surely, 2^{140274774025618} is an apocalyptic number.

140274774025618 is a deficient number, since it is larger than the sum of its proper divisors (70137387012812).

140274774025618 is an equidigital number, since it uses as much as digits as its factorization.

140274774025618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70137387012811.

The product of its (nonzero) digits is 21073920, while the sum is 58.

The spelling of 140274774025618 in words is "one hundred forty trillion, two hundred seventy-four billion, seven hundred seventy-four million, twenty-five thousand, six hundred eighteen".