29993702357680 has 40 divisors (see below), whose sum is σ = 70717546135584. Its totient is φ = 11828502336000.

The previous prime is 29993702357551. The next prime is 29993702357687. The reversal of 29993702357680 is 8675320739992.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×29993702357680² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29993702357687) 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, 2640285021 + ... + 2640296380.

Almost surely, 2^{29993702357680} is an apocalyptic number.

29993702357680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29993702357680 is an abundant number, since it is smaller than the sum of its proper divisors (40723843777904).

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

29993702357680 is a wasteful number, since it uses less digits than its factorization.

29993702357680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5280581485 (or 5280581479 counting only the distinct ones).

The product of its (nonzero) digits is 308629440, while the sum is 70.

The spelling of 29993702357680 in words is "twenty-nine trillion, nine hundred ninety-three billion, seven hundred two million, three hundred fifty-seven thousand, six hundred eighty".