742578284451 has 8 divisors (see below), whose sum is σ = 990178926784. Its totient is φ = 495014915880.

The previous prime is 742578284363. The next prime is 742578284453. The reversal of 742578284451 is 154482875247.

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

It is not a de Polignac number, because 742578284451 - 2¹¹ = 742578282403 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 742578284391 and 742578284400.

It is not an unprimeable number, because it can be changed into a prime (742578284453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9271921 + ... + 9351666.

It is an arithmetic number, because the mean of its divisors is an integer number (123772365848).

Almost surely, 2^742578284451 is an apocalyptic number.

742578284451 is a deficient number, since it is larger than the sum of its proper divisors (247600642333).

742578284451 is a wasteful number, since it uses less digits than its factorization.

742578284451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18636881.

The product of its digits is 20070400, while the sum is 57.

The spelling of 742578284451 in words is "seven hundred forty-two billion, five hundred seventy-eight million, two hundred eighty-four thousand, four hundred fifty-one".