2619989902 has 8 divisors (see below), whose sum is σ = 4013601696. Its totient is φ = 1282122672.

The previous prime is 2619989873. The next prime is 2619989903. The reversal of 2619989902 is 2099899162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2619989903) 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, 13936023 + ... + 13936210.

It is an arithmetic number, because the mean of its divisors is an integer number (501700212).

Almost surely, 2^2619989902 is an apocalyptic number.

2619989902 is a deficient number, since it is larger than the sum of its proper divisors (1393611794).

2619989902 is a wasteful number, since it uses less digits than its factorization.

2619989902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27872282.

The product of its (nonzero) digits is 1259712, while the sum is 55.

The square root of 2619989902 is about 51185.8369278065. The cubic root of 2619989902 is about 1378.5839114453.

The spelling of 2619989902 in words is "two billion, six hundred nineteen million, nine hundred eighty-nine thousand, nine hundred two".