1474377686661 has 16 divisors (see below), whose sum is σ = 2147793795648. Its totient is φ = 892210387200.

The previous prime is 1474377686657. The next prime is 1474377686693. The reversal of 1474377686661 is 1666867734741.

It is not a de Polignac number, because 1474377686661 - 2² = 1474377686657 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1474377686592 and 1474377686601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1474377686861) 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, 33774036 + ... + 33817661.

It is an arithmetic number, because the mean of its divisors is an integer number (134237112228).

Almost surely, 2^{1474377686661} is an apocalyptic number.

1474377686661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1474377686661 is a deficient number, since it is larger than the sum of its proper divisors (673416108987).

1474377686661 is a wasteful number, since it uses less digits than its factorization.

1474377686661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67592372.

The product of its digits is 170698752, while the sum is 66.

The spelling of 1474377686661 in words is "one trillion, four hundred seventy-four billion, three hundred seventy-seven million, six hundred eighty-six thousand, six hundred sixty-one".