6121890473 has 4 divisors (see below), whose sum is σ = 6388059648. Its totient is φ = 5855721300.

The previous prime is 6121890461. The next prime is 6121890493. The reversal of 6121890473 is 3740981216.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6121890473 - 2⁶ = 6121890409 is a prime.

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 6121890473.

It is not an unprimeable number, because it can be changed into a prime (6121890413) 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, 133084553 + ... + 133084598.

It is an arithmetic number, because the mean of its divisors is an integer number (1597014912).

Almost surely, 2^6121890473 is an apocalyptic number.

It is an amenable number.

6121890473 is a deficient number, since it is larger than the sum of its proper divisors (266169175).

6121890473 is a wasteful number, since it uses less digits than its factorization.

6121890473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266169174.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 6121890473 is about 78242.5106511799. The cubic root of 6121890473 is about 1829.3431778408.

The spelling of 6121890473 in words is "six billion, one hundred twenty-one million, eight hundred ninety thousand, four hundred seventy-three".