149373667757 has 4 divisors (see below), whose sum is σ = 149526558876. Its totient is φ = 149220776640.

The previous prime is 149373667733. The next prime is 149373667789. The reversal of 149373667757 is 757766373941.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 89292794761 + 60080872996 = 298819^2 + 245114^2 .

It is a cyclic number.

It is not a de Polignac number, because 149373667757 - 2⁸ = 149373667501 is a prime.

It is a super-2 number, since 2×149373667757² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149373667693 and 149373667702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149373627757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76444094 + ... + 76446047.

It is an arithmetic number, because the mean of its divisors is an integer number (37381639719).

Almost surely, 2^149373667757 is an apocalyptic number.

It is an amenable number.

149373667757 is a deficient number, since it is larger than the sum of its proper divisors (152891119).

149373667757 is an equidigital number, since it uses as much as digits as its factorization.

149373667757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152891118.

The product of its digits is 140026320, while the sum is 65.

The spelling of 149373667757 in words is "one hundred forty-nine billion, three hundred seventy-three million, six hundred sixty-seven thousand, seven hundred fifty-seven".