2642195052 has 180 divisors, whose sum is σ = 8208202464. Its totient is φ = 738642240.

The previous prime is 2642195051. The next prime is 2642195057. The reversal of 2642195052 is 2505912462.

2642195052 is a `hidden beast` number, since 2 + 642 + 1 + 9 + 5 + 0 + 5 + 2 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2642194998 and 2642195016.

It is not an unprimeable number, because it can be changed into a prime (2642195051) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 744402 + ... + 747942.

Almost surely, 2^2642195052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2642195052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4104101232).

2642195052 is an abundant number, since it is smaller than the sum of its proper divisors (5566007412).

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

2642195052 is a wasteful number, since it uses less digits than its factorization.

2642195052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3618 (or 3600 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 2642195052 is about 51402.2864472000. The cubic root of 2642195052 is about 1382.4675888358.

The spelling of 2642195052 in words is "two billion, six hundred forty-two million, one hundred ninety-five thousand, fifty-two".