3761016403861 has 2 divisors, whose sum is σ = 3761016403862. Its totient is φ = 3761016403860.

The previous prime is 3761016403841. The next prime is 3761016403909. The reversal of 3761016403861 is 1683046101673.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3648921346225 + 112095057636 = 1910215^2 + 334806^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3761016403861 is a prime.

It is a super-2 number, since 2×3761016403861² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3761016403841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1880508201930 + 1880508201931.

It is an arithmetic number, because the mean of its divisors is an integer number (1880508201931).

Almost surely, 2^{3761016403861} is an apocalyptic number.

It is an amenable number.

3761016403861 is a deficient number, since it is larger than the sum of its proper divisors (1).

3761016403861 is an equidigital number, since it uses as much as digits as its factorization.

3761016403861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 3761016403861 in words is "three trillion, seven hundred sixty-one billion, sixteen million, four hundred three thousand, eight hundred sixty-one".