235406742457 has 8 divisors (see below), whose sum is σ = 248751210240. Its totient is φ = 222321390720.

The previous prime is 235406742443. The next prime is 235406742509. The reversal of 235406742457 is 754247604532.

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

It is a cyclic number.

It is not a de Polignac number, because 235406742457 - 2³¹ = 233259258809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 235406742457.

It is not an unprimeable number, because it can be changed into a prime (235406742437) 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, 64777144 + ... + 64780777.

It is an arithmetic number, because the mean of its divisors is an integer number (31093901280).

Almost surely, 2^235406742457 is an apocalyptic number.

It is an amenable number.

235406742457 is a deficient number, since it is larger than the sum of its proper divisors (13344467783).

235406742457 is a wasteful number, since it uses less digits than its factorization.

235406742457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129558023.

The product of its (nonzero) digits is 5644800, while the sum is 49.

The spelling of 235406742457 in words is "two hundred thirty-five billion, four hundred six million, seven hundred forty-two thousand, four hundred fifty-seven".