149002782646 has 4 divisors (see below), whose sum is σ = 223504173972. Its totient is φ = 74501391322.

The previous prime is 149002782589. The next prime is 149002782767. The reversal of 149002782646 is 646287200941.

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

It is a super-2 number, since 2×149002782646² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 149002782646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37250695660 + ... + 37250695663.

It is an arithmetic number, because the mean of its divisors is an integer number (55876043493).

Almost surely, 2^149002782646 is an apocalyptic number.

149002782646 is a deficient number, since it is larger than the sum of its proper divisors (74501391326).

149002782646 is an equidigital number, since it uses as much as digits as its factorization.

149002782646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74501391325.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 149002782646 in words is "one hundred forty-nine billion, two million, seven hundred eighty-two thousand, six hundred forty-six".