157880365469 has 4 divisors (see below), whose sum is σ = 158042962080. Its totient is φ = 157717768860.

The previous prime is 157880365463. The next prime is 157880365471. The reversal of 157880365469 is 964563088751.

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, and also an emirpimes, since its reverse is a distinct semiprime: 964563088751 = 881 ⋅1094850271.

It is a cyclic number.

It is not a de Polignac number, because 157880365469 - 2⁴ = 157880365453 is a prime.

It is a super-2 number, since 2×157880365469² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157880365463) 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, 81296849 + ... + 81298790.

It is an arithmetic number, because the mean of its divisors is an integer number (39510740520).

Almost surely, 2^157880365469 is an apocalyptic number.

It is an amenable number.

157880365469 is a deficient number, since it is larger than the sum of its proper divisors (162596611).

157880365469 is an equidigital number, since it uses as much as digits as its factorization.

157880365469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162596610.

The product of its (nonzero) digits is 43545600, while the sum is 62.

The spelling of 157880365469 in words is "one hundred fifty-seven billion, eight hundred eighty million, three hundred sixty-five thousand, four hundred sixty-nine".