124778900747 has 2 divisors, whose sum is σ = 124778900748. Its totient is φ = 124778900746.

The previous prime is 124778900717. The next prime is 124778900791. The reversal of 124778900747 is 747009877421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 124778900747 - 2¹² = 124778896651 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 124778900692 and 124778900701.

It is not a weakly prime, because it can be changed into another prime (124778900717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62389450373 + 62389450374.

It is an arithmetic number, because the mean of its divisors is an integer number (62389450374).

Almost surely, 2^124778900747 is an apocalyptic number.

124778900747 is a deficient number, since it is larger than the sum of its proper divisors (1).

124778900747 is an equidigital number, since it uses as much as digits as its factorization.

124778900747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5531904, while the sum is 56.

The spelling of 124778900747 in words is "one hundred twenty-four billion, seven hundred seventy-eight million, nine hundred thousand, seven hundred forty-seven".