29779403742 has 48 divisors (see below), whose sum is σ = 70745072112. Its totient is φ = 8978242560.

The previous prime is 29779403699. The next prime is 29779403777. The reversal of 29779403742 is 24730497792.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 342723 + ... + 420734.

It is an arithmetic number, because the mean of its divisors is an integer number (1473855669).

Almost surely, 2^29779403742 is an apocalyptic number.

29779403742 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

29779403742 is an abundant number, since it is smaller than the sum of its proper divisors (40965668370).

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

29779403742 is a wasteful number, since it uses less digits than its factorization.

29779403742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763673 (or 763670 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 54.

The spelling of 29779403742 in words is "twenty-nine billion, seven hundred seventy-nine million, four hundred three thousand, seven hundred forty-two".