2581964950 has 24 divisors (see below), whose sum is σ = 4809201120. Its totient is φ = 1031335200.

The previous prime is 2581964939. The next prime is 2581964951. The reversal of 2581964950 is 594691852.

2581964950 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2581964894 and 2581964903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2581964951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40 + ... + 71860.

It is an arithmetic number, because the mean of its divisors is an integer number (200383380).

Almost surely, 2^2581964950 is an apocalyptic number.

2581964950 is a deficient number, since it is larger than the sum of its proper divisors (2227236170).

2581964950 is a wasteful number, since it uses less digits than its factorization.

2581964950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72552 (or 72547 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 49.

The square root of 2581964950 is about 50813.0391730312. The cubic root of 2581964950 is about 1371.8820723722.

The spelling of 2581964950 in words is "two billion, five hundred eighty-one million, nine hundred sixty-four thousand, nine hundred fifty".