10129483778 has 6 divisors (see below), whose sum is σ = 15194439171. Its totient is φ = 5064670722.

The previous prime is 10129483769. The next prime is 10129483783. The reversal of 10129483778 is 87738492101.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5064741889 + 5064741889 = 71167^2 + 71167^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=71167.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 106751 + ... + 177917.

Almost surely, 2^10129483778 is an apocalyptic number.

10129483778 is a deficient number, since it is larger than the sum of its proper divisors (5064955393).

10129483778 is an frugal number, since it uses more digits than its factorization.

10129483778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142336 (or 71169 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 50.

Multiplying 10129483778 by its sum of digits (50), we get a square (506474188900 = 711670²).

The spelling of 10129483778 in words is "ten billion, one hundred twenty-nine million, four hundred eighty-three thousand, seven hundred seventy-eight".