1958102642 has 8 divisors (see below), whose sum is σ = 2949760476. Its totient is φ = 974849152.

The previous prime is 1958102563. The next prime is 1958102701. The reversal of 1958102642 is 2462018591.

It can be written as a sum of positive squares in 2 ways, for example, as 1905235201 + 52867441 = 43649^2 + 7271^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1958102596 and 1958102605.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2100503 + ... + 2101434.

Almost surely, 2^1958102642 is an apocalyptic number.

1958102642 is a deficient number, since it is larger than the sum of its proper divisors (991657834).

1958102642 is a wasteful number, since it uses less digits than its factorization.

1958102642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4202172.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 1958102642 is about 44250.4535795962. The cubic root of 1958102642 is about 1251.0609961350.

The spelling of 1958102642 in words is "one billion, nine hundred fifty-eight million, one hundred two thousand, six hundred forty-two".