72545214021477 has 16 divisors (see below), whose sum is σ = 97423428963840. Its totient is φ = 48015241830000.

The previous prime is 72545214021389. The next prime is 72545214021479. The reversal of 72545214021477 is 77412041254527.

It is not a de Polignac number, because 72545214021477 - 2⁷ = 72545214021349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72545214021479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82860702 + ... + 83731632.

It is an arithmetic number, because the mean of its divisors is an integer number (6088964310240).

Almost surely, 2^{72545214021477} is an apocalyptic number.

It is an amenable number.

72545214021477 is a deficient number, since it is larger than the sum of its proper divisors (24878214942363).

72545214021477 is a wasteful number, since it uses less digits than its factorization.

72545214021477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070824.

The product of its (nonzero) digits is 4390400, while the sum is 51.

The spelling of 72545214021477 in words is "seventy-two trillion, five hundred forty-five billion, two hundred fourteen million, twenty-one thousand, four hundred seventy-seven".