1018426667685 has 32 divisors (see below), whose sum is σ = 1862419660032. Its totient is φ = 465528038400.

The previous prime is 1018426667669. The next prime is 1018426667693. The reversal of 1018426667685 is 5867666248101.

It is a happy number.

It is not a de Polignac number, because 1018426667685 - 2⁴ = 1018426667669 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 897357 + ... + 1685853.

It is an arithmetic number, because the mean of its divisors is an integer number (58200614376).

Almost surely, 2^{1018426667685} is an apocalyptic number.

1018426667685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1018426667685 is a deficient number, since it is larger than the sum of its proper divisors (843992992347).

1018426667685 is a wasteful number, since it uses less digits than its factorization.

1018426667685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800813.

The product of its (nonzero) digits is 23224320, while the sum is 60.

The spelling of 1018426667685 in words is "one trillion, eighteen billion, four hundred twenty-six million, six hundred sixty-seven thousand, six hundred eighty-five".