29676686780 has 48 divisors (see below), whose sum is σ = 67149816384. Its totient is φ = 10951856640.

The previous prime is 29676686761. The next prime is 29676686797. The reversal of 29676686780 is 8768667692.

It is a Harshad number since it is a multiple of its sum of digits (65).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 489545 + ... + 546815.

It is an arithmetic number, because the mean of its divisors is an integer number (1398954508).

Almost surely, 2^29676686780 is an apocalyptic number.

29676686780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29676686780 is an abundant number, since it is smaller than the sum of its proper divisors (37473129604).

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

29676686780 is a wasteful number, since it uses less digits than its factorization.

29676686780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59286 (or 59284 counting only the distinct ones).

The product of its (nonzero) digits is 73156608, while the sum is 65.

The spelling of 29676686780 in words is "twenty-nine billion, six hundred seventy-six million, six hundred eighty-six thousand, seven hundred eighty".