1640429499219 has 8 divisors (see below), whose sum is σ = 2499702094080. Its totient is φ = 937388285256.

The previous prime is 1640429499217. The next prime is 1640429499257. The reversal of 1640429499219 is 9129949240461.

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

It is not a de Polignac number, because 1640429499219 - 2¹ = 1640429499217 is a prime.

It is a super-2 number, since 2×1640429499219² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1640429499217) 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, 39057845199 + ... + 39057845240.

It is an arithmetic number, because the mean of its divisors is an integer number (312462761760).

Almost surely, 2^{1640429499219} is an apocalyptic number.

1640429499219 is a deficient number, since it is larger than the sum of its proper divisors (859272594861).

1640429499219 is an equidigital number, since it uses as much as digits as its factorization.

1640429499219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78115690449.

The product of its (nonzero) digits is 10077696, while the sum is 60.

The spelling of 1640429499219 in words is "one trillion, six hundred forty billion, four hundred twenty-nine million, four hundred ninety-nine thousand, two hundred nineteen".