401391396853 has 8 divisors (see below), whose sum is σ = 404728414272. Its totient is φ = 398068141056.

The previous prime is 401391396851. The next prime is 401391396869. The reversal of 401391396853 is 358693193104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 401391396853 - 2¹ = 401391396851 is a prime.

It is a super-2 number, since 2×401391396853² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 401391396853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401391396851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3381825 + ... + 3498502.

It is an arithmetic number, because the mean of its divisors is an integer number (50591051784).

Almost surely, 2^401391396853 is an apocalyptic number.

It is an amenable number.

401391396853 is a deficient number, since it is larger than the sum of its proper divisors (3337017419).

401391396853 is a wasteful number, since it uses less digits than its factorization.

401391396853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6880811.

The product of its (nonzero) digits is 2099520, while the sum is 52.

The spelling of 401391396853 in words is "four hundred one billion, three hundred ninety-one million, three hundred ninety-six thousand, eight hundred fifty-three".