407413786921 has 16 divisors (see below), whose sum is σ = 414041500800. Its totient is φ = 400811846400.

The previous prime is 407413786837. The next prime is 407413786937. The reversal of 407413786921 is 129687314704.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 407413786921 - 2³⁷ = 269974833449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (407413786961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72997351 + ... + 73002931.

It is an arithmetic number, because the mean of its divisors is an integer number (25877593800).

Almost surely, 2^407413786921 is an apocalyptic number.

It is an amenable number.

407413786921 is a deficient number, since it is larger than the sum of its proper divisors (6627713879).

407413786921 is a wasteful number, since it uses less digits than its factorization.

407413786921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7680.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The spelling of 407413786921 in words is "four hundred seven billion, four hundred thirteen million, seven hundred eighty-six thousand, nine hundred twenty-one".