2145636470 has 16 divisors (see below), whose sum is σ = 4089331008. Its totient is φ = 807768960.

The previous prime is 2145636431. The next prime is 2145636473. The reversal of 2145636470 is 746365412.

It is a happy number.

It is a super-2 number, since 2×2145636470² = 9207511722788121800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145636473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6310526 + ... + 6310865.

It is an arithmetic number, because the mean of its divisors is an integer number (255583188).

Almost surely, 2^2145636470 is an apocalyptic number.

2145636470 is a deficient number, since it is larger than the sum of its proper divisors (1943694538).

2145636470 is a wasteful number, since it uses less digits than its factorization.

2145636470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12621415.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 2145636470 is about 46321.0154249667. The cubic root of 2145636470 is about 1289.7891348543.

The spelling of 2145636470 in words is "two billion, one hundred forty-five million, six hundred thirty-six thousand, four hundred seventy".