902405011992049 has 12 divisors (see below), whose sum is σ = 907506235173888. Its totient is φ = 897307866200000.

The previous prime is 902405011992041. The next prime is 902405011992149. The reversal of 902405011992049 is 940299110504209.

It is a happy number.

It is not a de Polignac number, because 902405011992049 - 2³ = 902405011992041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (902405011992041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1115396424 + ... + 1116205174.

It is an arithmetic number, because the mean of its divisors is an integer number (75625519597824).

Almost surely, 2^{902405011992049} is an apocalyptic number.

It is an amenable number.

902405011992049 is a deficient number, since it is larger than the sum of its proper divisors (5101223181839).

902405011992049 is an frugal number, since it uses more digits than its factorization.

902405011992049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813776 (or 811359 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 55.

The spelling of 902405011992049 in words is "nine hundred two trillion, four hundred five billion, eleven million, nine hundred ninety-two thousand, forty-nine".