1011894738718 has 4 divisors (see below), whose sum is σ = 1517842108080. Its totient is φ = 505947369358.

The previous prime is 1011894738641. The next prime is 1011894738737. The reversal of 1011894738718 is 8178374981101.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252973684678 + ... + 252973684681.

It is an arithmetic number, because the mean of its divisors is an integer number (379460527020).

Almost surely, 2^{1011894738718} is an apocalyptic number.

1011894738718 is a deficient number, since it is larger than the sum of its proper divisors (505947369362).

1011894738718 is an equidigital number, since it uses as much as digits as its factorization.

1011894738718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505947369361.

The product of its (nonzero) digits is 2709504, while the sum is 58.

The spelling of 1011894738718 in words is "one trillion, eleven billion, eight hundred ninety-four million, seven hundred thirty-eight thousand, seven hundred eighteen".