3642646501 has 8 divisors (see below), whose sum is σ = 3923763704. Its totient is φ = 3361659840.

The previous prime is 3642646477. The next prime is 3642646519. The reversal of 3642646501 is 1056462463.

It can be written as a sum of positive squares in 4 ways, for example, as 779861476 + 2862785025 = 27926^2 + 53505^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3642646501 - 2⁷ = 3642646373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3642646571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29755 + ... + 90391.

It is an arithmetic number, because the mean of its divisors is an integer number (490470463).

Almost surely, 2^3642646501 is an apocalyptic number.

It is an amenable number.

3642646501 is a deficient number, since it is larger than the sum of its proper divisors (281117203).

3642646501 is a wasteful number, since it uses less digits than its factorization.

3642646501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65271.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 3642646501 is about 60354.3411943168. The cubic root of 3642646501 is about 1538.6470521610.

The spelling of 3642646501 in words is "three billion, six hundred forty-two million, six hundred forty-six thousand, five hundred one".