406534498901 has 4 divisors (see below), whose sum is σ = 430448292972. Its totient is φ = 382620704832.

The previous prime is 406534498897. The next prime is 406534498919. The reversal of 406534498901 is 109894435604.

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

It can be written as a sum of positive squares in 2 ways, for example, as 213997834801 + 192536664100 = 462599^2 + 438790^2 .

It is a cyclic number.

It is not a de Polignac number, because 406534498901 - 2² = 406534498897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406534498921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11956897010 + ... + 11956897043.

It is an arithmetic number, because the mean of its divisors is an integer number (107612073243).

Almost surely, 2^406534498901 is an apocalyptic number.

It is an amenable number.

406534498901 is a deficient number, since it is larger than the sum of its proper divisors (23913794071).

406534498901 is a wasteful number, since it uses less digits than its factorization.

406534498901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23913794070.

The product of its (nonzero) digits is 3732480, while the sum is 53.

The spelling of 406534498901 in words is "four hundred six billion, five hundred thirty-four million, four hundred ninety-eight thousand, nine hundred one".