2621432601 has 12 divisors (see below), whose sum is σ = 3787511728. Its totient is φ = 1747161144.

The previous prime is 2621432591. The next prime is 2621432609. The reversal of 2621432601 is 1062341262.

2621432601 is a `hidden beast` number, since 2 + 6 + 21 + 4 + 32 + 601 = 666.

It is not a de Polignac number, because 2621432601 - 2⁶ = 2621432537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2621432609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 355 + ... + 72408.

Almost surely, 2^2621432601 is an apocalyptic number.

It is an amenable number.

2621432601 is a deficient number, since it is larger than the sum of its proper divisors (1166079127).

2621432601 is a wasteful number, since it uses less digits than its factorization.

2621432601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76772 (or 76769 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 2621432601 is about 51199.9277440896. The cubic root of 2621432601 is about 1378.8369043648.

Adding to 2621432601 its reverse (1062341262), we get a palindrome (3683773863).

The spelling of 2621432601 in words is "two billion, six hundred twenty-one million, four hundred thirty-two thousand, six hundred one".