3942777943 has 8 divisors (see below), whose sum is σ = 4271195600. Its totient is φ = 3639485304.

The previous prime is 3942777931. The next prime is 3942778003. The reversal of 3942777943 is 3497772493.

It is not a de Polignac number, because 3942777943 - 2²¹ = 3940680791 is a prime.

It is a super-2 number, since 2×3942777943² = 31090995815614622498, 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 (3942717943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 895113 + ... + 899506.

It is an arithmetic number, because the mean of its divisors is an integer number (533899450).

Almost surely, 2^3942777943 is an apocalyptic number.

3942777943 is a deficient number, since it is larger than the sum of its proper divisors (328417657).

3942777943 is an equidigital number, since it uses as much as digits as its factorization.

3942777943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794658 (or 1794632 counting only the distinct ones).

The product of its digits is 8001504, while the sum is 55.

The square root of 3942777943 is about 62791.5435628079. The cubic root of 3942777943 is about 1579.7951375417.

It can be divided in two parts, 39427 and 77943, that added together give a triangular number (117370 = T₄₈₄).

The spelling of 3942777943 in words is "three billion, nine hundred forty-two million, seven hundred seventy-seven thousand, nine hundred forty-three".