2642661342 has 32 divisors (see below), whose sum is σ = 5879919360. Its totient is φ = 879786360.

The previous prime is 2642661331. The next prime is 2642661349. The reversal of 2642661342 is 2431662462.

2642661342 is a `hidden beast` number, since 2 + 642 + 6 + 6 + 1 + 3 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2642661297 and 2642661306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642661349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13623 + ... + 73965.

It is an arithmetic number, because the mean of its divisors is an integer number (183747480).

Almost surely, 2^2642661342 is an apocalyptic number.

2642661342 is an abundant number, since it is smaller than the sum of its proper divisors (3237258018).

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

2642661342 is a wasteful number, since it uses less digits than its factorization.

2642661342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61165 (or 61159 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 2642661342 is about 51406.8219402834. The cubic root of 2642661342 is about 1382.5489092130.

The spelling of 2642661342 in words is "two billion, six hundred forty-two million, six hundred sixty-one thousand, three hundred forty-two".