6401400761 has 8 divisors (see below), whose sum is σ = 7369288320. Its totient is φ = 5446863648.

The previous prime is 6401400749. The next prime is 6401400763. The reversal of 6401400761 is 1670041046.

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 6401400761 - 2⁶ = 6401400697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6401400763) 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, 3336581 + ... + 3338498.

It is an arithmetic number, because the mean of its divisors is an integer number (921161040).

Almost surely, 2^6401400761 is an apocalyptic number.

It is an amenable number.

6401400761 is a deficient number, since it is larger than the sum of its proper divisors (967887559).

6401400761 is a wasteful number, since it uses less digits than its factorization.

6401400761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6675223.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 6401400761 is about 80008.7542772664. The cubic root of 6401400761 is about 1856.7709768270.

The spelling of 6401400761 in words is "six billion, four hundred one million, four hundred thousand, seven hundred sixty-one".