2517969942 has 64 divisors (see below), whose sum is σ = 5861099520. Its totient is φ = 799761600.

The previous prime is 2517969931. The next prime is 2517969967. The reversal of 2517969942 is 2499697152.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 332842 + ... + 340322.

It is an arithmetic number, because the mean of its divisors is an integer number (91579680).

Almost surely, 2^2517969942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2517969942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2930549760).

2517969942 is an abundant number, since it is smaller than the sum of its proper divisors (3343129578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2517969942 is a wasteful number, since it uses less digits than its factorization.

2517969942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7786 (or 7780 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The square root of 2517969942 is about 50179.3776565633. The cubic root of 2517969942 is about 1360.4529096360.

The spelling of 2517969942 in words is "two billion, five hundred seventeen million, nine hundred sixty-nine thousand, nine hundred forty-two".