4542021015 has 64 divisors (see below), whose sum is σ = 8550088704. Its totient is φ = 2015895168.

The previous prime is 4542020999. The next prime is 4542021031. The reversal of 4542021015 is 5101202454.

It is an interprime number because it is at equal distance from previous prime (4542020999) and next prime (4542021031).

It is not a de Polignac number, because 4542021015 - 2⁴ = 4542020999 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 623122 + ... + 630368.

It is an arithmetic number, because the mean of its divisors is an integer number (133595136).

Almost surely, 2^4542021015 is an apocalyptic number.

4542021015 is a deficient number, since it is larger than the sum of its proper divisors (4008067689).

4542021015 is a wasteful number, since it uses less digits than its factorization.

4542021015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7436.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 4542021015 is about 67394.5176924652. The cubic root of 4542021015 is about 1656.0866125000.

Adding to 4542021015 its reverse (5101202454), we get a palindrome (9643223469).

The spelling of 4542021015 in words is "four billion, five hundred forty-two million, twenty-one thousand, fifteen".