641199012 has 24 divisors (see below), whose sum is σ = 1517205312. Its totient is φ = 210722400.

The previous prime is 641198989. The next prime is 641199029. The reversal of 641199012 is 210991146.

It is a super-2 number, since 2×641199012² = 822272345979552288, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375439 + ... + 377142.

It is an arithmetic number, because the mean of its divisors is an integer number (63216888).

Almost surely, 2^641199012 is an apocalyptic number.

It is an amenable number.

641199012 is an abundant number, since it is smaller than the sum of its proper divisors (876006300).

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

641199012 is a wasteful number, since it uses less digits than its factorization.

641199012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752659 (or 752657 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 641199012 is about 25321.9077480351. The cubic root of 641199012 is about 862.3117055038.

The spelling of 641199012 in words is "six hundred forty-one million, one hundred ninety-nine thousand, twelve".