40642100670451 has 12 divisors (see below), whose sum is σ = 48555401939632. Its totient is φ = 33321473838576.

The previous prime is 40642100670371. The next prime is 40642100670461. The reversal of 40642100670451 is 15407600124604.

It is not a de Polignac number, because 40642100670451 - 2¹⁷ = 40642100539379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40642100670461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5487722556 + ... + 5487729961.

Almost surely, 2^{40642100670451} is an apocalyptic number.

40642100670451 is a deficient number, since it is larger than the sum of its proper divisors (7913301269181).

40642100670451 is a wasteful number, since it uses less digits than its factorization.

40642100670451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10975452570 (or 10975452547 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 40642100670451 in words is "forty trillion, six hundred forty-two billion, one hundred million, six hundred seventy thousand, four hundred fifty-one".