78572215071453 has 32 divisors (see below), whose sum is σ = 105645428582400. Its totient is φ = 51941183212800.

The previous prime is 78572215071421. The next prime is 78572215071491. The reversal of 78572215071453 is 35417051227587.

It is not a de Polignac number, because 78572215071453 - 2⁵ = 78572215071421 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 78572215071393 and 78572215071402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78572215071253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2074714108 + ... + 2074751978.

It is an arithmetic number, because the mean of its divisors is an integer number (3301419643200).

Almost surely, 2^{78572215071453} is an apocalyptic number.

It is an amenable number.

78572215071453 is a deficient number, since it is larger than the sum of its proper divisors (27073213510947).

78572215071453 is a wasteful number, since it uses less digits than its factorization.

78572215071453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43953.

The product of its (nonzero) digits is 16464000, while the sum is 57.

The spelling of 78572215071453 in words is "seventy-eight trillion, five hundred seventy-two billion, two hundred fifteen million, seventy-one thousand, four hundred fifty-three".