420401757403 has 4 divisors (see below), whose sum is σ = 433963104448. Its totient is φ = 406840410360.

The previous prime is 420401757401. The next prime is 420401757427. The reversal of 420401757403 is 304757104024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420401757403 - 2¹ = 420401757401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420401757401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6780673476 + ... + 6780673537.

It is an arithmetic number, because the mean of its divisors is an integer number (108490776112).

Almost surely, 2^420401757403 is an apocalyptic number.

420401757403 is a deficient number, since it is larger than the sum of its proper divisors (13561347045).

420401757403 is a wasteful number, since it uses less digits than its factorization.

420401757403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13561347044.

The product of its (nonzero) digits is 94080, while the sum is 37.

The spelling of 420401757403 in words is "four hundred twenty billion, four hundred one million, seven hundred fifty-seven thousand, four hundred three".