24879780778 has 16 divisors (see below), whose sum is σ = 38044702080. Its totient is φ = 12198471376.

The previous prime is 24879780769. The next prime is 24879780791. The reversal of 24879780778 is 87708797842.

It is a super-2 number, since 2×24879780778² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132243 + ... + 259321.

It is an arithmetic number, because the mean of its divisors is an integer number (2377793880).

Almost surely, 2^24879780778 is an apocalyptic number.

24879780778 is a deficient number, since it is larger than the sum of its proper divisors (13164921302).

24879780778 is a wasteful number, since it uses less digits than its factorization.

24879780778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128981.

The product of its (nonzero) digits is 88510464, while the sum is 67.

The spelling of 24879780778 in words is "twenty-four billion, eight hundred seventy-nine million, seven hundred eighty thousand, seven hundred seventy-eight".