145274267077450 has 48 divisors (see below), whose sum is σ = 310428399596544. Its totient is φ = 49547543572800.

The previous prime is 145274267077411. The next prime is 145274267077483. The reversal of 145274267077450 is 54770762472541.

It is a super-2 number, since 2×145274267077450² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1086502089 + ... + 1086635788.

It is an arithmetic number, because the mean of its divisors is an integer number (6467258324928).

Almost surely, 2^{145274267077450} is an apocalyptic number.

145274267077450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145274267077450 is an abundant number, since it is smaller than the sum of its proper divisors (165154132519094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145274267077450 is a wasteful number, since it uses less digits than its factorization.

145274267077450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2173138087 (or 2173138082 counting only the distinct ones).

The product of its (nonzero) digits is 92198400, while the sum is 61.

The spelling of 145274267077450 in words is "one hundred forty-five trillion, two hundred seventy-four billion, two hundred sixty-seven million, seventy-seven thousand, four hundred fifty".