247070029779 has 12 divisors (see below), whose sum is σ = 357152839056. Its totient is φ = 164586934512.

The previous prime is 247070029769. The next prime is 247070029837. The reversal of 247070029779 is 977920070742.

It is not a de Polignac number, because 247070029779 - 2⁷ = 247070029651 is a prime.

It is a super-2 number, since 2×247070029779² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247070029709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10522512 + ... + 10545965.

It is an arithmetic number, because the mean of its divisors is an integer number (29762736588).

Almost surely, 2^247070029779 is an apocalyptic number.

247070029779 is a deficient number, since it is larger than the sum of its proper divisors (110082809277).

247070029779 is a wasteful number, since it uses less digits than its factorization.

247070029779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21069786 (or 21069783 counting only the distinct ones).

The product of its (nonzero) digits is 3111696, while the sum is 54.

The spelling of 247070029779 in words is "two hundred forty-seven billion, seventy million, twenty-nine thousand, seven hundred seventy-nine".