42451423041407 has 2 divisors, whose sum is σ = 42451423041408. Its totient is φ = 42451423041406.

The previous prime is 42451423041397. The next prime is 42451423041437. The reversal of 42451423041407 is 70414032415424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42451423041407 - 2³⁰ = 42450349299583 is a prime.

It is a super-2 number, since 2×42451423041407² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42451423041437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21225711520703 + 21225711520704.

It is an arithmetic number, because the mean of its divisors is an integer number (21225711520704).

Almost surely, 2^{42451423041407} is an apocalyptic number.

42451423041407 is a deficient number, since it is larger than the sum of its proper divisors (1).

42451423041407 is an equidigital number, since it uses as much as digits as its factorization.

42451423041407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 430080, while the sum is 41.

The spelling of 42451423041407 in words is "forty-two trillion, four hundred fifty-one billion, four hundred twenty-three million, forty-one thousand, four hundred seven".