2519020664 has 16 divisors (see below), whose sum is σ = 4725053520. Its totient is φ = 1259006400.

The previous prime is 2519020657. The next prime is 2519020687. The reversal of 2519020664 is 4660209152.

It is a happy number.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41309 + ... + 82124.

It is an arithmetic number, because the mean of its divisors is an integer number (295315845).

Almost surely, 2^2519020664 is an apocalyptic number.

It is an amenable number.

2519020664 is a deficient number, since it is larger than the sum of its proper divisors (2206032856).

2519020664 is a wasteful number, since it uses less digits than its factorization.

2519020664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125990 (or 125986 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 2519020664 is about 50189.8462241119. The cubic root of 2519020664 is about 1360.6421174832.

It can be divided in two parts, 25190 and 20664, that added together give a palindrome (45854).

The spelling of 2519020664 in words is "two billion, five hundred nineteen million, twenty thousand, six hundred sixty-four".