64402640630435 has 8 divisors (see below), whose sum is σ = 77311973531760. Its totient is φ = 51502909320864.

The previous prime is 64402640630413. The next prime is 64402640630563. The reversal of 64402640630435 is 53403604620446.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64402640630435 - 2¹⁴ = 64402640614051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64402640630435.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2400383180 + ... + 2400410009.

It is an arithmetic number, because the mean of its divisors is an integer number (9663996691470).

Almost surely, 2^{64402640630435} is an apocalyptic number.

64402640630435 is a deficient number, since it is larger than the sum of its proper divisors (12909332901325).

64402640630435 is a wasteful number, since it uses less digits than its factorization.

64402640630435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4800795877.

The product of its (nonzero) digits is 4976640, while the sum is 47.

The spelling of 64402640630435 in words is "sixty-four trillion, four hundred two billion, six hundred forty million, six hundred thirty thousand, four hundred thirty-five".