4640621061015 has 12 divisors (see below), whose sum is σ = 8043743172504. Its totient is φ = 2474997899184.

The previous prime is 4640621060987. The next prime is 4640621061019. The reversal of 4640621061015 is 5101601260464.

4640621061015 is a `hidden beast` number, since 4 + 6 + 4 + 0 + 6 + 21 + 0 + 610 + 15 = 666.

4640621061015 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4640621061015 - 2⁵ = 4640621060983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4640621061019) 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, 51562456189 + ... + 51562456278.

It is an arithmetic number, because the mean of its divisors is an integer number (670311931042).

Almost surely, 2^{4640621061015} is an apocalyptic number.

4640621061015 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4640621061015 is a deficient number, since it is larger than the sum of its proper divisors (3403122111489).

4640621061015 is a wasteful number, since it uses less digits than its factorization.

4640621061015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103124912478 (or 103124912475 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 4640621061015 in words is "four trillion, six hundred forty billion, six hundred twenty-one million, sixty-one thousand, fifteen".