1640924829471 has 16 divisors (see below), whose sum is σ = 2304194374400. Its totient is φ = 1035859684608.

The previous prime is 1640924829457. The next prime is 1640924829491. The reversal of 1640924829471 is 1749284290461.

It is not a de Polignac number, because 1640924829471 - 2⁶ = 1640924829407 is a prime.

It is a super-3 number, since 3×1640924829471³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1640924829451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7021411 + ... + 7251348.

It is an arithmetic number, because the mean of its divisors is an integer number (144012148400).

Almost surely, 2^{1640924829471} is an apocalyptic number.

1640924829471 is a deficient number, since it is larger than the sum of its proper divisors (663269544929).

1640924829471 is a wasteful number, since it uses less digits than its factorization.

1640924829471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14274798.

The product of its (nonzero) digits is 6967296, while the sum is 57.

The spelling of 1640924829471 in words is "one trillion, six hundred forty billion, nine hundred twenty-four million, eight hundred twenty-nine thousand, four hundred seventy-one".