7545061642 has 4 divisors (see below), whose sum is σ = 11317592466. Its totient is φ = 3772530820.

The previous prime is 7545061619. The next prime is 7545061649. The reversal of 7545061642 is 2461605457.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2461605457 = 17 ⋅144800321.

It can be written as a sum of positive squares in only one way, i.e., 6653501761 + 891559881 = 81569^2 + 29859^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 7545061595 and 7545061604.

It is not an unprimeable number, because it can be changed into a prime (7545061649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1886265409 + ... + 1886265412.

Almost surely, 2^7545061642 is an apocalyptic number.

7545061642 is a deficient number, since it is larger than the sum of its proper divisors (3772530824).

7545061642 is a wasteful number, since it uses less digits than its factorization.

7545061642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3772530823.

The product of its (nonzero) digits is 201600, while the sum is 40.

The square root of 7545061642 is about 86862.3142795539. The cubic root of 7545061642 is about 1961.3462257996.

The spelling of 7545061642 in words is "seven billion, five hundred forty-five million, sixty-one thousand, six hundred forty-two".