10049778381 has 16 divisors (see below), whose sum is σ = 13588211520. Its totient is φ = 6605665920.

The previous prime is 10049778371. The next prime is 10049778383. The reversal of 10049778381 is 18387794001.

10049778381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10049778381 - 2⁷ = 10049778253 is a prime.

It is a super-2 number, since 2×10049778381² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10049778381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10049778383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 751330 + ... + 764588.

It is an arithmetic number, because the mean of its divisors is an integer number (849263220).

Almost surely, 2^10049778381 is an apocalyptic number.

It is an amenable number.

10049778381 is a deficient number, since it is larger than the sum of its proper divisors (3538433139).

10049778381 is a wasteful number, since it uses less digits than its factorization.

10049778381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16796.

The product of its (nonzero) digits is 338688, while the sum is 48.

The spelling of 10049778381 in words is "ten billion, forty-nine million, seven hundred seventy-eight thousand, three hundred eighty-one".