772157019 has 16 divisors (see below), whose sum is σ = 1041790464. Its totient is φ = 508668000.

The previous prime is 772156999. The next prime is 772157027. The reversal of 772157019 is 910751277.

772157019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 772157019 - 2¹³ = 772148827 is a prime.

It is a super-2 number, since 2×772157019² = 1192452923981932722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (772157039) 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, 170782 + ... + 175244.

It is an arithmetic number, because the mean of its divisors is an integer number (65111904).

Almost surely, 2^772157019 is an apocalyptic number.

772157019 is a deficient number, since it is larger than the sum of its proper divisors (269633445).

772157019 is a wasteful number, since it uses less digits than its factorization.

772157019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5138.

The product of its (nonzero) digits is 30870, while the sum is 39.

The square root of 772157019 is about 27787.7134539710. The cubic root of 772157019 is about 917.4207130786.

The spelling of 772157019 in words is "seven hundred seventy-two million, one hundred fifty-seven thousand, nineteen".