6422657490 has 24 divisors (see below), whose sum is σ = 16698909708. Its totient is φ = 1712708640.

The previous prime is 6422657429. The next prime is 6422657519. The reversal of 6422657490 is 947562246.

It can be written as a sum of positive squares in 2 ways, for example, as 6334090569 + 88566921 = 79587^2 + 9411^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35681341 + ... + 35681520.

Almost surely, 2^6422657490 is an apocalyptic number.

6422657490 is an abundant number, since it is smaller than the sum of its proper divisors (10276252218).

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

6422657490 is a wasteful number, since it uses less digits than its factorization.

6422657490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71362874 (or 71362871 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The square root of 6422657490 is about 80141.4842013797. The cubic root of 6422657490 is about 1858.8239270111.

The spelling of 6422657490 in words is "six billion, four hundred twenty-two million, six hundred fifty-seven thousand, four hundred ninety".