4002277645 has 8 divisors (see below), whose sum is σ = 4818379104. Its totient is φ = 3191391504.

The previous prime is 4002277639. The next prime is 4002277651. The reversal of 4002277645 is 5467722004.

It is an interprime number because it is at equal distance from previous prime (4002277639) and next prime (4002277651).

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 4002277645 - 2²⁹ = 3465406733 is a prime.

It is a super-3 number, since 3×4002277645³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1302139 + ... + 1305208.

It is an arithmetic number, because the mean of its divisors is an integer number (602297388).

Almost surely, 2^4002277645 is an apocalyptic number.

It is an amenable number.

4002277645 is a deficient number, since it is larger than the sum of its proper divisors (816101459).

4002277645 is a wasteful number, since it uses less digits than its factorization.

4002277645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2607659.

The product of its (nonzero) digits is 94080, while the sum is 37.

The square root of 4002277645 is about 63263.5570055937. The cubic root of 4002277645 is about 1587.7022894718.

Adding to 4002277645 its reverse (5467722004), we get a palindrome (9469999649).

It can be divided in two parts, 400 and 2277645, that added together give a triangular number (2278045 = T₂₁₃₄).

The spelling of 4002277645 in words is "four billion, two million, two hundred seventy-seven thousand, six hundred forty-five".