919156327452272 has 80 divisors (see below), whose sum is σ = 2192931889751232. Its totient is φ = 363440197969920.

The previous prime is 919156327452257. The next prime is 919156327452277. The reversal of 919156327452272 is 272254723651919.

It is a junction number, because it is equal to n+sod(n) for n = 919156327452199 and 919156327452208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (919156327452277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155151629 + ... + 160966892.

Almost surely, 2^{919156327452272} is an apocalyptic number.

It is an amenable number.

919156327452272 is an abundant number, since it is smaller than the sum of its proper divisors (1273775562298960).

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

919156327452272 is a wasteful number, since it uses less digits than its factorization.

919156327452272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316120546 (or 316120540 counting only the distinct ones).

The product of its digits is 114307200, while the sum is 65.

The spelling of 919156327452272 in words is "nine hundred nineteen trillion, one hundred fifty-six billion, three hundred twenty-seven million, four hundred fifty-two thousand, two hundred seventy-two".