742253544545 has 8 divisors (see below), whose sum is σ = 891603052800. Its totient is φ = 593203636080.

The previous prime is 742253544523. The next prime is 742253544583. The reversal of 742253544545 is 545445352247.

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 742253544545 - 2²⁰ = 742252495969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 742253544493 and 742253544502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74894495 + ... + 74904404.

It is an arithmetic number, because the mean of its divisors is an integer number (111450381600).

Almost surely, 2^742253544545 is an apocalyptic number.

It is an amenable number.

742253544545 is a deficient number, since it is larger than the sum of its proper divisors (149349508255).

742253544545 is a wasteful number, since it uses less digits than its factorization.

742253544545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149799895.

The product of its digits is 13440000, while the sum is 50.

The spelling of 742253544545 in words is "seven hundred forty-two billion, two hundred fifty-three million, five hundred forty-four thousand, five hundred forty-five".