148456517677 has 6 divisors (see below), whose sum is σ = 160754690922. Its totient is φ = 137036785392.

The previous prime is 148456517659. The next prime is 148456517681. The reversal of 148456517677 is 776715654841.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 21220914276 + 127235603401 = 145674^2 + 356701^2 .

It is not a de Polignac number, because 148456517677 - 2²⁷ = 148322299949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148456517687) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 439220298 + ... + 439220635.

It is an arithmetic number, because the mean of its divisors is an integer number (26792448487).

Almost surely, 2^148456517677 is an apocalyptic number.

It is an amenable number.

148456517677 is a deficient number, since it is larger than the sum of its proper divisors (12298173245).

148456517677 is an equidigital number, since it uses as much as digits as its factorization.

148456517677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878440959 (or 878440946 counting only the distinct ones).

The product of its digits is 39513600, while the sum is 61.

The spelling of 148456517677 in words is "one hundred forty-eight billion, four hundred fifty-six million, five hundred seventeen thousand, six hundred seventy-seven".