1679235696640 has 384 divisors, whose sum is σ = 4376576655360. Its totient is φ = 616528281600.

The previous prime is 1679235696631. The next prime is 1679235696731. The reversal of 1679235696640 is 466965329761.

It is a super-2 number, since 2×1679235696640² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 927241335 + ... + 927243145.

It is an arithmetic number, because the mean of its divisors is an integer number (11397335040).

Almost surely, 2^{1679235696640} is an apocalyptic number.

1679235696640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1679235696640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2188288327680).

1679235696640 is an abundant number, since it is smaller than the sum of its proper divisors (2697340958720).

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

1679235696640 is a wasteful number, since it uses less digits than its factorization.

1679235696640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019 (or 1999 counting only the distinct ones).

The product of its (nonzero) digits is 88179840, while the sum is 64.

The spelling of 1679235696640 in words is "one trillion, six hundred seventy-nine billion, two hundred thirty-five million, six hundred ninety-six thousand, six hundred forty".