124778049345 has 72 divisors (see below), whose sum is σ = 236410736640. Its totient is φ = 63045436320.

The previous prime is 124778049313. The next prime is 124778049359. The reversal of 124778049345 is 543940877421.

124778049345 is a `hidden beast` number, since 1 + 2 + 4 + 77 + 80 + 493 + 4 + 5 = 666.

It is not a de Polignac number, because 124778049345 - 2⁵ = 124778049313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 124778049291 and 124778049300.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 523200 + ... + 723390.

Almost surely, 2^124778049345 is an apocalyptic number.

124778049345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

124778049345 is a deficient number, since it is larger than the sum of its proper divisors (111632687295).

124778049345 is an frugal number, since it uses more digits than its factorization.

124778049345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200239 (or 200218 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 124778049345 in words is "one hundred twenty-four billion, seven hundred seventy-eight million, forty-nine thousand, three hundred forty-five".