401702126081 has 4 divisors (see below), whose sum is σ = 406786963200. Its totient is φ = 396617288964.

The previous prime is 401702126053. The next prime is 401702126083. The reversal of 401702126081 is 180621207104.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 401702126081 - 2⁶ = 401702126017 is a prime.

It is a super-2 number, since 2×401702126081² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401702126083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2542418441 + ... + 2542418598.

It is an arithmetic number, because the mean of its divisors is an integer number (101696740800).

Almost surely, 2^401702126081 is an apocalyptic number.

It is an amenable number.

401702126081 is a deficient number, since it is larger than the sum of its proper divisors (5084837119).

401702126081 is an equidigital number, since it uses as much as digits as its factorization.

401702126081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5084837118.

The product of its (nonzero) digits is 5376, while the sum is 32.

The spelling of 401702126081 in words is "four hundred one billion, seven hundred two million, one hundred twenty-six thousand, eighty-one".