157627834649 has 4 divisors (see below), whose sum is σ = 157794285264. Its totient is φ = 157461384036.

The previous prime is 157627834619. The next prime is 157627834687. The reversal of 157627834649 is 946438726751.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 157627834649 - 2¹⁶ = 157627769113 is a prime.

It is a super-2 number, since 2×157627834649² (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 = 157627834591 and 157627834600.

It is not an unprimeable number, because it can be changed into a prime (157627834619) 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, 83223887 + ... + 83225780.

It is an arithmetic number, because the mean of its divisors is an integer number (39448571316).

Almost surely, 2^157627834649 is an apocalyptic number.

It is an amenable number.

157627834649 is a deficient number, since it is larger than the sum of its proper divisors (166450615).

157627834649 is an equidigital number, since it uses as much as digits as its factorization.

157627834649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166450614.

The product of its digits is 60963840, while the sum is 62.

The spelling of 157627834649 in words is "one hundred fifty-seven billion, six hundred twenty-seven million, eight hundred thirty-four thousand, six hundred forty-nine".