149461854619 has 144 divisors (see below), whose sum is σ = 209910005760. Its totient is φ = 105619852800.

The previous prime is 149461854541. The next prime is 149461854623. The reversal of 149461854619 is 916458164941.

It is not a de Polignac number, because 149461854619 - 2¹¹ = 149461852571 is a prime.

It is a super-2 number, since 2×149461854619² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (149461854319) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 443506819 + ... + 443507155.

Almost surely, 2^149461854619 is an apocalyptic number.

149461854619 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

149461854619 is a deficient number, since it is larger than the sum of its proper divisors (60448151141).

149461854619 is a wasteful number, since it uses less digits than its factorization.

149461854619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550 (or 532 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 58.

The spelling of 149461854619 in words is "one hundred forty-nine billion, four hundred sixty-one million, eight hundred fifty-four thousand, six hundred nineteen".