2195129976 has 64 divisors (see below), whose sum is σ = 5956608000. Its totient is φ = 670094208.

The previous prime is 2195129941. The next prime is 2195130001. The reversal of 2195129976 is 6799215912.

It is a super-2 number, since 2×2195129976² = 9637191223067521152, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11925 + ... + 67323.

It is an arithmetic number, because the mean of its divisors is an integer number (93072000).

Almost surely, 2^2195129976 is an apocalyptic number.

2195129976 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2195129976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2978304000).

2195129976 is an abundant number, since it is smaller than the sum of its proper divisors (3761478024).

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

2195129976 is a wasteful number, since it uses less digits than its factorization.

2195129976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55548 (or 55544 counting only the distinct ones).

The product of its digits is 612360, while the sum is 51.

The square root of 2195129976 is about 46852.2142059476. The cubic root of 2195129976 is about 1299.6310542758.

The spelling of 2195129976 in words is "two billion, one hundred ninety-five million, one hundred twenty-nine thousand, nine hundred seventy-six".