1426401200691 has 24 divisors (see below), whose sum is σ = 2066483225664. Its totient is φ = 948108067200.

The previous prime is 1426401200689. The next prime is 1426401200713. The reversal of 1426401200691 is 1960021046241.

1426401200691 is a `hidden beast` number, since 1 + 4 + 2 + 640 + 1 + 2 + 0 + 0 + 6 + 9 + 1 = 666.

It is not a de Polignac number, because 1426401200691 - 2¹ = 1426401200689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1426401200611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13824505 + ... + 13927301.

It is an arithmetic number, because the mean of its divisors is an integer number (86103467736).

Almost surely, 2^{1426401200691} is an apocalyptic number.

1426401200691 is a deficient number, since it is larger than the sum of its proper divisors (640082024973).

1426401200691 is a wasteful number, since it uses less digits than its factorization.

1426401200691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107371 (or 107368 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 1426401200691 in words is "one trillion, four hundred twenty-six billion, four hundred one million, two hundred thousand, six hundred ninety-one".