4737542661 has 20 divisors (see below), whose sum is σ = 7249686444. Its totient is φ = 3081326400.

The previous prime is 4737542659. The next prime is 4737542671. The reversal of 4737542661 is 1662457374.

4737542661 is a `hidden beast` number, since 47 + 3 + 7 + 542 + 6 + 61 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 70056900 + 4667485761 = 8370^2 + 68319^2 .

It is not a de Polignac number, because 4737542661 - 2¹ = 4737542659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4737542651) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 709950 + ... + 716591.

Almost surely, 2^4737542661 is an apocalyptic number.

4737542661 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4737542661 is a deficient number, since it is larger than the sum of its proper divisors (2512143783).

4737542661 is a wasteful number, since it uses less digits than its factorization.

4737542661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426594 (or 1426585 counting only the distinct ones).

The product of its digits is 846720, while the sum is 45.

The square root of 4737542661 is about 68829.8093924427. The cubic root of 4737542661 is about 1679.5168987201.

The spelling of 4737542661 in words is "four billion, seven hundred thirty-seven million, five hundred forty-two thousand, six hundred sixty-one".