5112783781 has 16 divisors (see below), whose sum is σ = 6307488000. Its totient is φ = 4047297408.

The previous prime is 5112783761. The next prime is 5112783787. The reversal of 5112783781 is 1873872115.

It is not a de Polignac number, because 5112783781 - 2¹³ = 5112775589 is a prime.

It is a super-2 number, since 2×5112783781² = 52281115982513311922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5112783787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 542856 + ... + 552193.

It is an arithmetic number, because the mean of its divisors is an integer number (394218000).

Almost surely, 2^5112783781 is an apocalyptic number.

It is an amenable number.

5112783781 is a deficient number, since it is larger than the sum of its proper divisors (1194704219).

5112783781 is a wasteful number, since it uses less digits than its factorization.

5112783781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095108.

The product of its digits is 94080, while the sum is 43.

The square root of 5112783781 is about 71503.7326368351. The cubic root of 5112783781 is about 1722.7376383650.

The spelling of 5112783781 in words is "five billion, one hundred twelve million, seven hundred eighty-three thousand, seven hundred eighty-one".