74872542455 has 8 divisors (see below), whose sum is σ = 92745343104. Its totient is φ = 57965839200.

The previous prime is 74872542439. The next prime is 74872542463. The reversal of 74872542455 is 55424527847.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74872542455 - 2⁴ = 74872542439 is a prime.

It is a super-2 number, since 2×74872542455² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74872542397 and 74872542406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241524176 + ... + 241524485.

It is an arithmetic number, because the mean of its divisors is an integer number (11593167888).

Almost surely, 2^74872542455 is an apocalyptic number.

74872542455 is a deficient number, since it is larger than the sum of its proper divisors (17872800649).

74872542455 is a wasteful number, since it uses less digits than its factorization.

74872542455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483048697.

The product of its digits is 12544000, while the sum is 53.

The spelling of 74872542455 in words is "seventy-four billion, eight hundred seventy-two million, five hundred forty-two thousand, four hundred fifty-five".