1061637481377 has 48 divisors (see below), whose sum is σ = 1786393889280. Its totient is φ = 601190150400.

The previous prime is 1061637481327. The next prime is 1061637481397. The reversal of 1061637481377 is 7731847361601.

It is a happy number.

1061637481377 is a `hidden beast` number, since 1 + 0 + 61 + 6 + 37 + 481 + 3 + 77 = 666.

It is not a de Polignac number, because 1061637481377 - 2¹⁹ = 1061636957089 is a prime.

It is a super-2 number, since 2×1061637481377² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1061637481327) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5875188 + ... + 6053189.

It is an arithmetic number, because the mean of its divisors is an integer number (37216539360).

Almost surely, 2^{1061637481377} is an apocalyptic number.

It is an amenable number.

1061637481377 is a deficient number, since it is larger than the sum of its proper divisors (724756407903).

1061637481377 is a wasteful number, since it uses less digits than its factorization.

1061637481377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11928454 (or 11928451 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 54.

The spelling of 1061637481377 in words is "one trillion, sixty-one billion, six hundred thirty-seven million, four hundred eighty-one thousand, three hundred seventy-seven".