5642102690 has 32 divisors (see below), whose sum is σ = 11713109760. Its totient is φ = 1916685504.

The previous prime is 5642102671. The next prime is 5642102693. The reversal of 5642102690 is 962012465.

It is a happy number.

It is a super-2 number, since 2×5642102690² = 63666645529010472200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 5642102690.

It is not an unprimeable number, because it can be changed into a prime (5642102693) 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, 362102 + ... + 377361.

It is an arithmetic number, because the mean of its divisors is an integer number (366034680).

Almost surely, 2^5642102690 is an apocalyptic number.

5642102690 is an abundant number, since it is smaller than the sum of its proper divisors (6071007070).

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

5642102690 is a wasteful number, since it uses less digits than its factorization.

5642102690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739586.

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

The square root of 5642102690 is about 75113.9313975776. The cubic root of 5642102690 is about 1780.2472713337.

The spelling of 5642102690 in words is "five billion, six hundred forty-two million, one hundred two thousand, six hundred ninety".