900401280061 has 8 divisors (see below), whose sum is σ = 903280049280. Its totient is φ = 897526832112.

The previous prime is 900401280049. The next prime is 900401280067. The reversal of 900401280061 is 160082104009.

It is a happy number.

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 900401280061 - 2²¹ = 900399182909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900401280067) 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, 662665 + ... + 1496638.

It is an arithmetic number, because the mean of its divisors is an integer number (112910006160).

Almost surely, 2^900401280061 is an apocalyptic number.

It is an amenable number.

900401280061 is a deficient number, since it is larger than the sum of its proper divisors (2878769219).

900401280061 is a wasteful number, since it uses less digits than its factorization.

900401280061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160635.

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 900401280061 in words is "nine hundred billion, four hundred one million, two hundred eighty thousand, sixty-one".