145738937858 has 4 divisors (see below), whose sum is σ = 218608406790. Its totient is φ = 72869468928.

The previous prime is 145738937837. The next prime is 145738937899. The reversal of 145738937858 is 858739837541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 104152716529 + 41586221329 = 322727^2 + 203927^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36434734463 + ... + 36434734466.

Almost surely, 2^145738937858 is an apocalyptic number.

145738937858 is a deficient number, since it is larger than the sum of its proper divisors (72869468932).

145738937858 is an equidigital number, since it uses as much as digits as its factorization.

145738937858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72869468931.

The product of its digits is 203212800, while the sum is 68.

The spelling of 145738937858 in words is "one hundred forty-five billion, seven hundred thirty-eight million, nine hundred thirty-seven thousand, eight hundred fifty-eight".